fenil210/Med-Lamma huggingface dataset:
Who is at risk for Colorectal Cancer? ?
Scientists don't know exactly what causes colorectal cancer, but they have been able to identify some risk factors for the disease. A risk factor is anything that increases your chances of getting a disease. Studies show that the following risk factors may increase a person's chances of developing colorectal cancer: age, polyps, personal history, family history, and ulcerative colitis. Age Colorectal cancer is more likely to occur as people get older. It is more common in people over the age of 50, but younger people can get it, too. In rare cases, it can occur in adolescence. Polyps Polyps are benign, or non-cancerous, growths on the inner wall of the colon and rectum. They are fairly common in people over age 50. Some types of polyps increase a person's risk of developing colorectal cancer. Not all polyps become cancerous, but nearly all colon cancers start as polyps. Diet The link between diet and colorectal cancer is not firmly established. There is evidence that smoking cigarettes and drinking 3 or more alcoholic beverages daily may be associated with an increased risk of colorectal cancer. Personal History Research shows that women with a history of cancer of the ovary, uterus, or breast have a somewhat increased chance of developing colorectal cancer. Also, a person who has already had colorectal cancer may develop this disease a second time. Family History The parents, siblings, and children of a person who has had colorectal cancer are somewhat more likely to develop this type of cancer themselves. This is especially true if the relative had the cancer at a young age. If many family members have had colorectal cancer, the chances increase even more. Ulcerative colitis Ulcerative colitis is a condition in which there is a chronic break in the lining of the colon. Having this condition increases a person's chance of developing colorectal cancer. Genetic Mutations Researchers have identified genetic mutations, or abnormalities, that may be linked to the development of colon cancer. They are working to unravel the exact ways these genetic changes occur. Recent results from The Cancer Genome Atlas study of colorectal cancer point to several genes (BRAF and EGRF among others) that may increase risk. If You Have Risk Factors If you have one or more of these risk factors, it doesn't mean you will get colorectal cancer. It just increases the chances. You may wish to talk to your doctor about these risk factors. He or she may be able to suggest ways you can reduce your chances of developing colorectal cancer and plan an appropriate schedule for checkups. + NIHSeniorHealth + Colorectal Cancer
What are the treatments for Colorectal Cancer ?
There are several treatment options for colorectal cancer, although most treatments begin with surgical removal of either the cancerous polyp or section of the colon. The choice of treatment depends on your age and general health, the stage of cancer, whether or not it has spread beyond the colon, and other factors. If tests show that you have cancer, you should talk with your doctor and make treatment decisions as soon as possible. Studies show that early treatment leads to better outcomes. Working With a Team of Specialists A team of specialists often treats people with cancer. The team will keep the primary doctor informed about the patient's progress. The team may include a medical oncologist who is a specialist in cancer treatment, a surgeon, a radiation oncologist who is a specialist in radiation therapy, and others. Before starting treatment, you may want another doctor to review the diagnosis and treatment plan. Some insurance companies require a second opinion. Others may pay for a second opinion if you request it. Clinical Trials for Colorectal Cancer Some colorectal cancer patients take part in studies of new treatments. These studies, called clinical trials, are designed to find out whether a new treatment is safe and effective. Often, clinical trials compare a new treatment with a standard one so that doctors can learn which is more effective. People with colorectal cancer who are interested in taking part in a clinical trial should talk with their doctor. The U.S. National Institutes of Health, through its National Library of Medicine and other Institutes, maintains a database of clinical trials at ClinicalTrials.gov. Click here to see a list of the current clinical trials on colorectal cancer. A separate window will open. Click the "x" in the upper right hand corner of the "Clinical Trials" window to return here. + NIHSeniorHealth + Colorectal Cancer
What is (are) Colorectal Cancer ?
The body is made up of many types of cells. Normally, cells grow, divide, and produce more cells as needed to keep the body healthy and functioning properly. Sometimes, however, the process goes wrong. Cells become abnormal and form more cells in an uncontrolled way. These extra cells form a mass of tissue, called a growth or tumor. Tumors can be benign, which means non-cancerous, or malignant, which means cancerous. + NIHSeniorHealth + Colorectal Cancer
What is (are) Colorectal Cancer ?
Cancer of the colon or rectum is called colorectal cancer. The colon and the rectum are part of the large intestine, which is part of the digestive system. Colorectal cancer occurs when malignant tumors form in the lining of the large intestine, also called the large bowel. + NIHSeniorHealth + Colorectal Cancer
How many people are affected by Colorectal Cancer ?
Colorectal cancer accounts for almost ten percent of all cancer deaths in the United States. The risk of developing colorectal cancer rises after age 50. It is common in both men and women. + NIHSeniorHealth + Colorectal Cancer
Who is at risk for Colorectal Cancer? ?
Studies show that the following risk factors may increase a person's chances of developing colorectal cancer: age, polyps, personal history, family history, and ulcerative colitis. + NIHSeniorHealth + Colorectal Cancer
Who is at risk for Colorectal Cancer? ?
Yes. Ulcerative colitis is a condition in which there is a chronic break in the lining of the colon. It has been associated with an increased risk of colon cancer. + NIHSeniorHealth + Colorectal Cancer
What is (are) Colorectal Cancer ?
Parents, siblings, or children of a person who has had colorectal cancer are somewhat more likely to develop this type of cancer themselves. This is especially true if the relative had the cancer at a young age. If many family members have had colorectal cancer, the chances increase even more. + NIHSeniorHealth + Colorectal Cancer
What are the symptoms of Colorectal Cancer ?
Possible signs of colorectal cancer include: - a change in the frequency of bowel movements   - diarrhea, constipation, or feeling that the bowel does not empty completely   - either bright red or very dark blood in the stool a change in the frequency of bowel movements diarrhea, constipation, or feeling that the bowel does not empty completely either bright red or very dark blood in the stool - stools that are narrower than usual  - general abdominal discomfort such as frequent gas pains, bloating, fullness, and/or cramps   - weight loss with no known reason  - constant tiredness  - vomiting stools that are narrower than usual general abdominal discomfort such as frequent gas pains, bloating, fullness, and/or cramps weight loss with no known reason constant tiredness vomiting + NIHSeniorHealth + Colorectal Cancer
What is (are) Colorectal Cancer ?
Here are some of the tools used to detect colorectal cancer. - A fecal occult blood test, or FOBT, is a test used to check for hidden blood in the stool. Sometimes cancers or polyps can bleed, and FOBT can detect small amounts of bleeding. Newer, genetically-based stool tests are proving to be more accurate than older tests. A fecal occult blood test, or FOBT, is a test used to check for hidden blood in the stool. Sometimes cancers or polyps can bleed, and FOBT can detect small amounts of bleeding. Newer, genetically-based stool tests are proving to be more accurate than older tests. - A sigmoidoscopy is an examination of the rectum and lower colon -- or sigmoid colon -- using a lighted instrument called a sigmoidoscope. A sigmoidoscopy is an examination of the rectum and lower colon -- or sigmoid colon -- using a lighted instrument called a sigmoidoscope.  - A colonoscopy is an examination of the rectum and the large intestine (but not the small intestine) using a lighted instrument called a colonoscope. A colonoscopy is an examination of the rectum and the large intestine (but not the small intestine) using a lighted instrument called a colonoscope.  - A virtual colonoscopy, which requires the same preparation as a standard colonoscopy, is done with an external scanning machine as opposed to a device inserted into the colon. The colon does need to be inflated with gas for proper scanning. A virtual colonoscopy, which requires the same preparation as a standard colonoscopy, is done with an external scanning machine as opposed to a device inserted into the colon. The colon does need to be inflated with gas for proper scanning. + NIHSeniorHealth + Colorectal Cancer
What is (are) Colorectal Cancer ?
Yes. In July 2008, the U.S. Preventive Services Task Force made its strongest ever recommendation for colorectal cancer screening: it suggested that all adults between ages 50 and 75 get screened, or tested, for the disease. The task force noted that various screening tests are available, making it possible for patients and their clinicians to decide which test is best for each person. + NIHSeniorHealth + Colorectal Cancer
What is (are) Colorectal Cancer ?
The three standard treatments for colon cancer are surgery, chemotherapy, and radiation. Surgery, however, is the most common first step in the treatment for all stages of colon cancer. Surgery is an operation to remove the cancer. A doctor may remove the cancer using several types of surgery. For rectal cancer, radiation treatment also is an option. + NIHSeniorHealth + Colorectal Cancer
What is (are) Colorectal Cancer ?
Several types of surgery are available for someone with colorectal cancer. If the cancer is found at a very early stage, the doctor may remove it without cutting through the abdominal wall. Instead, the doctor may put a tube up the rectum into the colon and cut the cancer out. This is called a local excision. If the cancer is found in a polyp, which is a small bulging piece of tissue, the operation is called a polypectomy. If the cancer is larger, the surgeon will remove the cancer and a small amount of healthy tissue around it. This is called a colectomy. The surgeon may then sew the healthy parts of the colon together. Usually, the surgeon will also remove lymph nodes near the colon and examine them under a microscope to see whether they contain cancer. If the doctor is not able to sew the two ends of the colon back together, an opening called a stoma is made on the abdomen for waste to pass out of the body before it reaches the rectum. This procedure is called a colostomy. Sometimes the colostomy is needed only until the lower colon has healed, and then it can be reversed. But if the doctor needs to remove the entire lower colon, the colostomy may be permanent. + NIHSeniorHealth + Colorectal Cancer
What are the treatments for Colorectal Cancer ?
Even if the doctor removes all the cancer that can be seen at the time of the operation, many patients receive chemotherapy after surgery to kill any cancer cells that are left. Chemotherapy treatment after surgery -- to increase the chances of a cure -- is called adjuvant therapy. Researchers have found that patients who received adjuvant therapy usually survived longer and went for longer periods of time without a recurrence of colon cancer than patients treated with surgery alone. Patients age 70 and older benefited from adjuvant treatment as much as their younger counterparts. In fact, adjuvant therapy is equally as effective -- and no more toxic -- for patients 70 and older as it is for younger patients, provided the older patients have no other serious diseases. Adjuvant chemotherapy is standard treatment for patients whose cancer is operable and who are at high risk for a recurrence of the disease. Most cases of colon cancer occur in individuals age 65 and over. But studies have shown that older patients receive adjuvant chemotherapy less frequently than younger patients. + NIHSeniorHealth + Colorectal Cancer
What are the treatments for Colorectal Cancer ?
For surgery, the main side effects are short-term pain and tenderness around the area of the operation. For chemotherapy, the side effects depend on which drugs you take and what the dosages are. Most often the side effects include nausea, vomiting, and hair loss. For radiation therapy, fatigue, loss of appetite, nausea, and diarrhea may occur. There are many new drugs that have greatly reduced the degree of nausea that used to be experienced because of some of these treatments. + NIHSeniorHealth + Colorectal Cancer
What is (are) Colorectal Cancer ?
Various drugs are under study as possible treatments for colorectal cancer. A 2005 study found that patients who took the drug AvastinTM with their standard chemotherapy treatment had a longer progression-free survival than those who did not take Avastin, but the evidence is mixed on whether or not Avastin can extend life. (The generic name for Avastin is bevacizumab.) Scientists are also working on vaccine therapies and monoclonal antibodies that may improve how patients' immune systems respond to colorectal cancers. Monoclonal antibodies are a single type of antibody that researchers make in large amounts in a laboratory. + NIHSeniorHealth + Colorectal Cancer
How to prevent Colorectal Cancer ?
Scientists have done research on chemoprevention -- the use of drugs to prevent cancer from developing in the first place. Most of these studies have looked at people with high risk for the disease (where it runs in families) and not in the general population. For example, researchers have found that anti-inflammatory drugs helped keep intestinal tumors from forming, but serious side effects have been noted so researchers are proceeding cautiously. Studies have shown that non-steroidal anti-inflammatory drugs can keep large bowel polyps from forming. Bowel polyps can start out benign, or non-cancerous, but can become cancerous. Serious cardiac effects of these drugs have been noted so researchers are also proceeding cautiously in recommending these drugs for prevention. + NIHSeniorHealth + Colorectal Cancer
Who is at risk for Colorectal Cancer? ?
Researchers are working hard to understand and identify the genes involved in colorectal cancer. Hereditary nonpolyposis colorectal cancer, or HNPCC, is one condition that causes people to develop colorectal cancer at a young age. The discovery of four genes involved with this disease has provided crucial clues about the role of DNA repair in colorectal and other cancers. + NIHSeniorHealth + Colorectal Cancer
What is (are) Parkinson's Disease ?
Parkinson's disease is a brain disorder that leads to shaking, stiffness, and difficulty with walking, balance, and coordination. It currently affects about half a million people in the United States, although the numbers may be much higher. Parkinson's disease is both chronic, meaning it lasts for a long time, and progressive, meaning its symptoms grow worse over time. It is not contagious. + NIHSeniorHealth + Parkinson's Disease
What are the symptoms of Parkinson's Disease ?
Parkinson's belongs to a group of neurological conditions called movement disorders. The four main symptoms of Parkinson's disease are: - tremor, or trembling in hands, arms, legs, jaw, or head  - rigidity, or stiffness of the limbs and trunk  - bradykinesia, or slowness of movement  - postural instability, or impaired balance. tremor, or trembling in hands, arms, legs, jaw, or head rigidity, or stiffness of the limbs and trunk bradykinesia, or slowness of movement postural instability, or impaired balance. Other symptoms include depression, emotional changes, difficulty swallowing, speech changes, urinary problems, sleep problems, and dementia and other cognitive problems. Parkinson's symptoms usually begin gradually and get worse over time. As the symptoms become more severe, people with the disorder may have difficulty walking, talking, or completing other simple tasks. They also experience non-motor, or movement, symptoms including mental and behavioral changes, sleep problems, depression, memory difficulties, and fatigue. Parkinson's disease not only affects the brain, but the entire body. While the brain involvement is responsible for the core features, other affected locations contribute to the complicated picture of Parkinson's. + NIHSeniorHealth + Parkinson's Disease
Who is at risk for Parkinson's Disease? ?
About 60,000 Americans are diagnosed with Parkinson's disease each year. The disease strikes about 50 percent more men than women. The average age of onset is 60 years, and the risk of developing the disease increases with age. Parkinson's disease is also more common in developed countries, possibly because of increased exposure to pesticides or other environmental toxins. + NIHSeniorHealth + Parkinson's Disease
What causes Parkinson's Disease ?
Parkinson's disease occurs when nerve cells, or neurons, in an area of the brain that controls movement die or become impaired. Normally, these neurons produce an important brain chemical known as dopamine, but once the neurons become impaired, they produce less dopamine and eventually die. It is this shortage of dopamine that causes the movement problems of people with Parkinson's. + NIHSeniorHealth + Parkinson's Disease
What is (are) Parkinson's Disease ?
Dopamine is a brain chemical messenger, or neurotransmitter. It is responsible for transmitting signals between a brain region called the substantia nigra and multiple brain regions. The connection between the substantia nigra and the corpus striatum is critical to produce smooth, purposeful movement. Loss of dopamine results in abnormal nerve-firing patterns within the brain that cause impaired movement. + NIHSeniorHealth + Parkinson's Disease
What is (are) Parkinson's Disease ?
Lewy bodies are unusual deposits or clumps of the brain protein alpha-synuclein, along with other proteins, which are seen upon microscopic examination of the brain. Many brain cells of people with Parkinson's disease contain Lewy bodies. Researchers do not yet know why Lewy bodies form or what role they play in the development of Parkinson's disease. The clumps may prevent the cell from functioning normally, or they may actually be helpful, perhaps by keeping harmful proteins "locked up" so that the cells can function. + NIHSeniorHealth + Parkinson's Disease
How to diagnose Parkinson's Disease ?
There are currently no blood or laboratory tests to diagnose sporadic Parkinson's disease. Diagnosis is based on a person's medical history and a neurological examination, but the disease can be difficult to diagnose accurately. Doctors may sometimes request brain scans or laboratory tests in order to rule out other diseases. However, computed tomography (CT) and magnetic resonance imaging (MRI) brain scans of people with Parkinson's usually appear normal. Recently, the FDA (Food and Drug Administration) has approved an imaging technique called DaTscan, which may help to increase accuracy of the diagnosis of Parkinsons disease. Since many other diseases have similar features but require different treatments, it is very important to make an exact diagnosis as soon as possible to ensure proper treatment. + NIHSeniorHealth + Parkinson's Disease
What is (are) Parkinson's Disease ?
The main therapy for Parkinson's disease is the drug levodopa, also called L-dopa. It is a simple chemical found naturally in plants and animals. Nerve cells use levodopa to make dopamine to replenish the brain's supply. Levodopa helps to reduce tremors and other symptoms of Parkinson's disease during the early stages of the disease. It allows most people with Parkinson's to extend the period of time in which they can lead relatively normal, productive lives. + NIHSeniorHealth + Parkinson's Disease
What is (are) Parkinson's Disease ?
Carbidopa is a drug that is usually given along with levodopa. It delays the body's conversion of levodopa into dopamine until the levodopa reaches the brain. This prevents or reduces some of the side effects that often accompany levodopa therapy. Carbidopa also reduces the amount of levodopa needed. + NIHSeniorHealth + Parkinson's Disease
What are the treatments for Parkinson's Disease ?
Yes. Other medications available to treat some symptoms and stages of Parkinson's disease include direct dopamine agonists, MAO-B inhibitors, COMT inhibitors, an anti-viral drug, and anticholinergics. Direct dopamine agonists are drugs that mimic the role of dopamine in the brain. They can be used in the early stages of the disease, or later on to give a more prolonged and steady dopaminergic effect in people who experience "wearing off" or "on-off" effects from taking the drug. Dopamine agonists are generally less effective than levodopa in controlling rigidity and bradykinesia. They can cause confusion in older adults. MAO-B inhibitors are another class of drugs that can reduce the symptoms of Parkinson's by causing dopamine to build up in surviving nerve cells. COMT inhibitors prolong the effects of levodopa by preventing the breakdown of dopamine. COMT inhibitors can usually make it possible to reduce a person's dose of levodopa. Amantadine, an old antiviral drug, can help reduce Parkinson's symptoms in the early stages of the disease, and again in later stages to treat dyskinesias. Anticholinergics can help reduce tremors and muscle rigidity. + NIHSeniorHealth + Parkinson's Disease
What are the symptoms of Parkinson's Disease ?
Doctors may prescribe a variety of medications to treat the non-motor symptoms of Parkinson's disease, such as depression and anxiety. Hallucinations, delusions, and other psychotic symptoms may be caused by some drugs prescribed for Parkinson's. Therefore, reducing or stopping those Parkinson's medications may make these symptoms of psychosis go away. A variety of treatment options, including medications, also are available to treat orthostatic hypotension, the sudden drop in blood pressure that occurs upon standing. + NIHSeniorHealth + Parkinson's Disease
What is (are) Parkinson's Disease ?
Deep brain stimulation, or DBS, is a surgical procedure used to treat a variety of disabling disorders. It is most commonly used to treat the debilitating symptoms of Parkinsons disease. Deep brain stimulation uses an electrode surgically implanted into part of the brain. The electrodes are connected under the skin to a small electrical device called a pulse generator, implanted in the chest. The generator and electrodes painlessly stimulate the brain to help stop many Parkinson's symptoms such as tremor, bradykinesia, and rigidity. DBS is primarily used to stimulate one of three brain regions: the subthalamic nucleus, the globus pallidus, or the thalamus. Researchers are exploring optimal generator settings for DBS, whether DBS of other brain regions will also improve symptoms of Parkinsons disease, and also whether DBS may slow disease progression. Deep brain stimulation usually reduces the need for levodopa and related drugs, which in turn decreases dyskinesias and other side effects. It also helps to relieve "on-off" fluctuation of symptoms. People who respond well to treatment with levodopa, even if only for a short period, tend to respond well to DBS. + NIHSeniorHealth + Parkinson's Disease