My written practicum will be on the causes of Pancreatic Cancer. Pancreatic Cancer is a genetic or environmental factor that critically affects the pancreas. This type of disease is considered to be “silent”, because the symptoms are often undetected. Thorough testing and critical screening can determine if there is an underlying cause or just a normal cycle of illness, such as the Flu. The cause of Pancreatic Cancer is determined to be caused by hereditary traits, environmental factors, as well as elderly age.
Scientists still do not know exactly what may cause most cases of Pancreatic Cancer, but they have found several risk factors that can make a person more likely to get this disease. In recent research, there has been a risk shown that a majority of these risk factors affect DNA of the cells of the pancreas. This can result in abnormal cell growth and may cause tumors to form.
When it comes down to it, it is nearly impossible to tell what caused a certain person to develop Pancreatic Cancer, but there are some important biological factors that can help doctors understand why it was formed. Scientists have conducted population-based studies as to why Pancreatic Cancer forms. These studies have also helped determine risk factors of Pancreatic Cancer and how to prevent them.
Pancreatic Cancer is also caused by damage to DNA, which can be inherited from parents or from aging. Smokers double their chances of developing Pancreatic Cancer versus if they did not smoke. The reason that smokers double their chances of developing this type of cancer is because smoking directly affects the pancreas. Not only does smoking actual cigarettes cause an increase in the risk of being diagnosed with Pancreatic Cancer, but also smokeless toba...
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... have been doing a phenomenal job of figuring this out. DNA is the chemical in each cell that carries our genes. DNA is the source of just about everything. It not only determines what we look like, but also many other things. Instructions are on some of our genes to let them know when they need to multiply and divide. Cancers can be caused by DNA defects.
Many cancers seem to have been inherited DNA mutations. These mutations cause an extremely high risk of developing certain types of cancer, such as Pancreatic Cancer. Many of these DNA changes have been shown by researchers in recent years. Most of the time, DNA in non-inherited cases of Pancreatic Cancer seem to be the same as those who have inherited it.
Although there are many causes of Pancreatic Cancer, there are also various ways to prevent the risk of being diagnosed with this often preventable disease.
DNA is the genetic material found in cells of all living organisms. Human beings contain approximately one trillion cells (Aronson 9). DNA is a long strand in the shape of a double helix made up of small building blocks (Riley). The repeat segments are cut out of the DNA strand by a restrictive enzyme that acts like scissors and the resulting fragments are sorted out by electrophoresis (Saferstein 391).
DNA (Deoxyribonucleic acid) is a molecule found in in the nucleus of all cells in the body which carries our genetic information. DNA is found in the form of chromosomes, with a total of 23 pairs in the human body1. DNA holds the genetic coding for all our characteristics, i.e. our eye colour, body shape, and how we interact with others on a daily basis.
The most common of these is the adenocarcinoma, which begins in the ducts of the pancreas and makes up about 95% of the exocrine cancers. When you think of the repercussions of smoking, you often think of lung cancer, but smoking also increases your chances of getting pancreatic cancer by almost 50%. You are twice as likely to get pancreatic cancer if you smoke than you would if you didn't. In addition, overweight people are twenty percent more likely to develop pancreatic cancer. Pancreatic cancer can also be hereditary, and you can be at a higher risk because of an inherited syndrome.
In most cases, it's not clear what causes colon cancer. Doctors know that colon cancer happens when healthy cells in the colon become changed.
Cancer has become the one of the most feared things for human beings. The various type of cancer have been discovered and there are still a lot of it that undiscoverable. Cancer is a complex disease that have a group of disease. The cancer itself cannot be describe by words. The causes of this cancer is still not being able to be discovered fully. There are only minor factor that can lead to this disease. The carcinogens are believed to be one of the causes that lead to cancer such as asbestos, radon gas, tobacco, PVC and much more from our chemical industries. The environment especially near to the industrial that produce chemical waste can be one of the causes lead to cancer. Cancer also have relation with our age, lifestyle, and diet and also can be genetically inherited. It is believed that older people have higher tendency to get cancer than younger people. Our lifestyle and diet also plays a role causing a cancer by our daily life routine. Smoking tobacco and eating unconsciously (still in research) can also increase the possibility to get cancer especially lung cancer that cause by smoking tobacco. There are several cases, cancer were inherited from their parents. Various type of viruses such as HIV, HPV, EBV and many more virus has a high capabilities to increase the chance a patient to get a cancer because these viruses lower their body immunity to disease.
Excessive alcohol intake and gallstones are the major risk factors for pancreatitis. Other risk factors include a family history of pancreatitis, high levels of fat in the blood, cigarette smoking, certain inherited disease such as cystic fibrosis and taking certain medications.
Another preventative step is to understand how cancer functions. If people can educate themselves about how cancer survives and works, they can take necessary steps to change their lifestyle to prevent cancer. Cancer is a loss of mitosis, or cell division. Cells begin to divide at an uncontrollable rate, which eventually spreads and eats awa...
The cancer cells from gene-mutation. Scientists now know some of the risk factors for lung cancer can cause certain changes in the DNA of lung cells. These changes can lead to not normal cell growth and, sometimes, cancer. DNA is the chemical in each of our cells that makes up our genes and how our cells function. People usually look like their parents because they are the source of our DNA. But DNA affects more than how we look; it also can affect our risk for developing certain diseases, including some kinds of cancer like lung cancer etc…Some people inherit DNA mutation from their parents that greatly increase their risk for developing certain cancers.
People can lower their risk of developing colorectal cancer by managing the risk factors that they can control, such as diet and physical activity. It is important to eat plenty of fruits, vegetables, and whole grain foods and to limit intake of high-fat foods. Physical activity is another area that people can control. Even small amounts of exercise on a regular basis can be helpful, at least 30 minutes of physical activity on most days. Also, achieving and maintaining a healthy weight.
Smoking causes many other types of cancer, including cancers of the throat, mouth, nasal cavity, esophagus, stomach, pancreas, kidney, bladder, and cervix, and even leukemia has been found linked to smoking. Also, people who smoke are up to six times more likely to suffer a heart attack than nonsmokers, and the risk increases with the number of cigarettes smoked. Smoking also causes most cases of chronic obstructive lung disease. Also, approximately 49,400 deaths have been due to exposure to secondhand smoke. 3,000 nonsmoking adults die of diseases caused by exposure to second-hand smoke every year.
Over the past few decades, cancer has become a very prominent disease. There are many different types of cancer and many different causes of the the disease. Most cancers are caused by a genetic mutation. The most common type occurs when a cell is divided. Proto-oncogenes, which are alleles in normal cells, mutate to form oncogenes.
This represents 4.0% of all male 1.8% of female hospitalisations respectively. The epidemiologic evidence and the corresponding biological understanding of respiratory cancer have supported the conclusion that smoking causes lung cancer. It is well documented that cigarette smoke: · is the major cause of lung cancer (primary carcinoma of the lung). · is a cause of heart disease, chronic lung disease, and oesophageal cancer.
Nicotine is the chemical in tobacco that most impacts the brain and provides near instantaneous feelings of pleasure associated with smoking. People who smoke usually have ruff skin or other things that are wrong with them. Tar will also stain smoker’s fingers, their teeth, and collects in their lungs (Eshrick 32). Lung cancer is the most common cancers that most people have. Studies have proven that one out of every four people die from lung cancer, and ninety percent of cancer is caused by tobacco use (Eshrick 62). Bladder cancer may occur when smokers inhale some of the carcinogens in tobacco smoke are absorbed from the lungs and get into the blood, then filtered by the kidneys and concentrated into the urine. If the victim smokes more than twenty cigarettes a day it can double the risk of the most common type of kidney cancer (Eshrick 55). The last cancer is cervical cancer, the chemicals damage the cervix. There are cells in the lining of the cervix called Langerhans cells that specifically help fight against diseases. These cells do not work well in smokers (Eshrick
Simply put, DNA contains the instructions needed for an organism to develop, survive, and reproduce. The discovery and use of DNA has seen many changes and made great progress over many years. James Watson was a pioneer molecular biologist who is credited, along with Francis Crick and Maurice Wilkins, with discovering the double helix structure of the DNA molecule. The three won the Nobel Prize in Medicine in 1962 for their work (Bagley, 2013). Scientists use the term “double helix” to describe DNA’s winding, two-stranded chemical structure.
Approximately one in two lifetime smokers will die from their habit. Half of these deaths will occur in middle age. The most common of the diseases caused by smoking is cancer, of course. Not only is it a cause of lung cancer, but cancer of the larynx, and the esophagus, and it contributes to the development of cancers of the bladder, pancreas, and kidney. Lung cancer comes from the tar in the cigarettes.