Pancreatic cancers are tumors that develop in the pancreas, a gland located behind the stomach that produces enzymes to help digest food and hormones that help regulate blood sugar levels.
According to the American Cancer Society, pancreatic cancer accounts for around 3% of all cancers in the United States, but it is responsible for almost 7% of cancer deaths. Although there is no single cause of pancreatic cancer, certain factors that increase the risk of developing the condition have been identified – including obesity.
What is obesity?
Obesity is a term used to describe a state of excessive body fat. It is typically defined as having a body mass index (BMI) of 30 or higher. BMI is calculated by dividing a person’s weight in kilograms by their height in meters squared.
Obesity is a major health concern in many countries around the world, including the United States. According to the Centers for Disease Control and Prevention (CDC), around 42.4% of adults in the US are obese.
What is pancreatic cancer?
Pancreatic cancer occurs when cells in the pancreas grow and divide uncontrollably, eventually forming a tumor.
Pancreatic tumors can interfere with the normal functioning of the pancreas, leading to symptoms such as abdominal pain, jaundice, and weight loss. There are several different types of pancreatic cancer, the most common of which is pancreatic adenocarcinoma.
This type of cancer begins in the cells that line the pancreatic ducts, which are the tubes that carry pancreatic juice to the small intestine.
Does obesity increase the risk of pancreatic cancer?
Research has suggested that there may be a link between obesity and pancreatic cancer. According to some studies, people who are obese may be more likely to develop pancreatic cancer than people who are not.
One study published in the Journal of the National Cancer Institute, for example, found that people with a BMI greater than 35 had a 70% higher risk of pancreatic cancer than people with a BMI of less than 25.
The reasons for this link are not yet fully understood, but researchers have suggested several possible mechanisms. One theory is that obesity may lead to inflammation in the pancreas, which can increase the risk of cancer.
Another theory is that obesity may affect levels of certain hormones in the body, such as insulin and insulin-like growth factor, which can also increase the risk of cancer.
Other risk factors for pancreatic cancer
While obesity is one risk factor for pancreatic cancer, there are several others that have been identified. These include:.
- Age: The risk of pancreatic cancer increases with age, with most cases occurring in people over the age of 65.
- Smoking: People who smoke are at higher risk of developing pancreatic cancer than non-smokers.
- Family history: People who have a family history of pancreatic cancer are at higher risk of developing the condition themselves.
- Pancreatitis: Chronic inflammation of the pancreas (pancreatitis) has been linked to an increased risk of pancreatic cancer.
- Diabetes: People with diabetes are at higher risk of developing pancreatic cancer than people without diabetes.
Symptoms of pancreatic cancer
The symptoms of pancreatic cancer can vary depending on the type of cancer and how advanced it is. Some common symptoms include:.
- Abdominal pain
- Jaundice (yellowing of the skin and eyes)
- Weight loss
- Loss of appetite
- Fatigue
- Nausea and vomiting
Diagnosing pancreatic cancer
Diagnosing pancreatic cancer can be difficult because the symptoms are often vague and can be caused by other conditions as well.
If a doctor suspects that a person may have pancreatic cancer, they may perform imaging tests such as an ultrasound, CT scan, or MRI to look for abnormalities in the pancreas. They may also take a biopsy, which involves removing a small sample of tissue from the pancreas for examination under a microscope.
Treatment for pancreatic cancer
Treatment for pancreatic cancer typically depends on the stage of the cancer and how far it has spread. For early-stage cancers that have not spread beyond the pancreas, surgery to remove the tumor may be an option.
For more advanced cancers, chemotherapy and radiation therapy may be used to shrink the tumor and help relieve symptoms.
Preventing pancreatic cancer
Because the causes of pancreatic cancer are not fully understood, it can be difficult to prevent. However, there are some steps that people can take to reduce their risk of developing the condition:.
- Maintain a healthy weight
- Quit smoking
- Limit alcohol consumption
- Eat a healthy diet that is rich in fruits, vegetables, and whole grains
- Exercise regularly
Conclusion
Pancreatic cancer is a serious condition that can be difficult to diagnose and treat. While the causes of pancreatic cancer are not fully understood, research has suggested that obesity may increase the risk of developing the condition.
Although there is no surefire way to prevent pancreatic cancer, maintaining a healthy weight, quitting smoking, and eating a healthy diet may help reduce the risk.