Highlights
- According to new research, type 2 diabetes increases colorectal cancer risk 1.5-fold in seniors.
- Seniors with diabetes are also more likely to develop other types of cancer, like liver and endometrial cancer.
- Smoking and obesity are additional colorectal cancer risk factors.
- Regular colon cancer screening improves survival odds and can prevent colorectal cancer.
In the complex maze of health challenges that seniors face, the link between type 2 diabetes and colorectal cancer emerges as a grave concern. According to a study published in January 2023 in the journal Diabetologia, type 2 diabetes increases the risk of colorectal cancer and other cancers by 1.5 times in seniors. The relationship between these two serious health conditions emphasizes the urgent need for awareness and early detection in the senior population.
Seniors with Diabetes: Understanding Cancer Risk
The connection between diabetes and various forms of cancer, especially among seniors, is a growing area of concern in the medical community. The Diabetologia study underscores the increased risk of certain cancers for aging individuals with type 2 diabetes.
Understanding the Global Impact of Diabetes
Diabetes has become a global concern. In 2019, it affected an estimated 463 million people, or 9.3% of the global population, and this number is projected to rise to 10.3% by 2030 and 10.9% by 2045. People living in urban areas in high-income countries are particularly vulnerable.
Colorectal Cancer Statistics
Colorectal cancer is the third most common cancer and the second leading cause of cancer deaths.
We have known about the interplay between diabetes and various cancers, including colorectal cancer, for some time. As people age, this interplay creates increasingly unfavorable health outcomes.
Because of this new research, we now know that if you are an aging diabetic, you are at increased risk to develop colorectal, endometrial, prostate, breast, liver, or pancreatic cancer than non-diabetics.
The Relationship Between Diabetes and Cancer Risk
Researchers have identified several ways diabetes can boost cancer growth. They include:
Shared Risk Factors
Diabetes and cancer share risk factors like a sedentary lifestyle, poor diet, and obesity.
Mechanisms for Cancer Growth
Additionally, the following factors can increase risk:
- Hyperinsulinemia. High levels of insulin promote cell growth and survival. Insulin also helps cancerous cells grow and multiply.
- Hyperglycemia. High blood sugar levels may help cancerous cells grow while creating conditions that facilitate their appearance.
- The insulin-like growth factor (IGF) axis. High insulin levels also boost insulin-like growth factors that help cancerous cells grow as well.
- An altered hormonal profile. High insulin levels may lead to an overabundance of hormones that can promote hormone-sensitive cancers.
- Persistent inflammation. Diabetes creates a state of persistent low-grade inflammation in the body, leading to the release of various cytokines. The resulting environment promotes cancer growth.
Gastrointestinal Issues in Diabetes Patients
Approximately 50% of diabetes patients experience gastrointestinal (GI) complications. These problems can range from mild discomfort like indigestion to serious, life-threatening conditions.
The most common GI issues in diabetes patients include gastroparesis, which is a delay in emptying the stomach, and chronic intestinal dysmotility, which affects the movement of food through the intestines. These conditions can lead to bacterial overgrowth and — less commonly — polyp formation in the colon.
Dysfunction of the Immune System
The immune system plays a vital role in fighting disease. When this system is impaired, it leads to various challenges in fighting cancer, particularly for seniors and individuals with type 2 diabetes.
The challenges a compromised immune system faces in fighting cancer include:
- Failure to recognize cancer cells. When the immune system is impaired, its ability to detect and destroy rogue cells diminishes, letting cancerous cells proliferate.
- Decreased tumor monitoring. A weakened immune system reduces the monitoring of tumors, leading to failures in detection and response to malignancy.
- Effects on treatment success. The impairment may negatively impact cancer treatments that depend on the immune system, creating challenges in cancer management.
- Rise in susceptibility to infection. The risk of infections becomes higher, diverting the immune system’s attention away from cancer, which can cause the disease to spread further.
- Chronic inflammation. Persistent inflammation, often present with a compromised immune system, may foster an environment promoting cancer development.
- Interactions with other health conditions. In the context of seniors with type 2 diabetes, an impaired immune system can be compounded by other health conditions, making it hard for it to do its job.
The Statistical Evidence
The Diabetologia study looked at a cohort of type 2 diabetes patients older than 35 to assess mortality rate trends. Researchers followed 137,804 individuals, looking to uncover relevant data about diabetes’ impact on mortality.
They looked at all-cause mortality rates, cancer mortality rates, and cancer-specific mortality rates, considering variables like age, ethnicity, gender, socioeconomic status, smoking, and obesity.
They found that during the study period, all-cause mortality rates dropped across the board. Cancer mortality rates also dropped for all ages except older seniors — those between 75 and 85.
However, in spite of the dropping numbers in cancer mortality overall, researchers established that diabetes actually boosted the risk of colorectal cancer for all ages except for those between 55 and 65. Cancer death risk increased faster for white people, obese people, and smokers.
Senior diabetics were the most likely to die from liver cancer, pancreatic cancer, lung cancer, endometrial cancer, prostate cancer, and breast cancer. Interestingly, toward the end of the study period, breast cancer, prostate cancer, and lung cancer mortality rates decreased somewhat in these age groups. However, they still remained higher than the cancer mortality rates of younger diabetics.
Diabetes and Colorectal Cancer: Risk Factors and Mortality Trends
The risk of colorectal cancer death increased consistently for the 75-85 age groups, having started from a higher baseline. Interestingly, it also increased significantly for 55 and 65-year-olds.
The findings of the study underlined the solid links between colorectal cancer and diabetes. Type 2 diabetes boosted cancer risk for most age groups. Being a senior, a woman, and a smoker with a high BMI may present the highest colorectal cancer risk for diabetes patients.
Another interesting conclusion of the study was that women overtook men in colorectal cancer mortality due to the steep risk increase. They remained slightly less likely to die of other cancers, however.
How to Manage Colorectal Cancer Risk as a Senior With Diabetes
Physical activity can reduce your colorectal cancer risk
People with diabetes can’t change their condition, age, or gender. They can, however, reduce other colon cancer risk factors. If you’re a senior with diabetes, here’s what you can do to manage your colon cancer risk.
- Maintain normal blood sugar levels. Uncontrolled diabetes wreaks havoc on your body and boosts inflammation, IGF levels, and other factors that contribute to colorectal cancer.
- Improve your diet. Focus on vegetables, fruits, lean proteins, and whole foods instead of sugary drinks, snacks, and red meat. Also, increase your fiber intake.
- Maintain a healthy body weight. In addition to causing diabetes, obesity is also a significant colon cancer risk factor.
- Quit smoking. Smoking boosts your colon cancer risk, not to mention lung cancer. Quit smoking if you’re a smoker, or don’t start smoking if you’re not.
- Avoid alcohol. Alcohol can cause many health problems. It can also increase your colorectal cancer risk. Quit alcohol or reduce your consumption to reduce your colon cancer risk.
- Try to avoid stress. Stress can ruin your health in many ways. It can impact your digestion and increase your colorectal cancer risk.
- Exercise regularly. Physical activity can reduce stress while boosting your well-being. Combine moderate aerobic exercise with strength training for optimal results.
- Drink water. Proper hydration sustains all bodily functions, including digestion. If you’re dehydrated, you may become constipated. And constipation boosts the risks of colorectal cancer.
Speak with your healthcare provider for more specific precautions tailored to your personal medical history.
The Importance of Regular Colon Cancer Screening
Regular colon cancer screening is the most impactful way to manage your colon cancer risk. It allows your doctors to detect cancer early, giving you more treatment options and better survival odds.
If your doctors notice polyps in your colon during screening, they can remove them before they become cancerous.
Taking Control of Your Health with Convenient Options
Early detection is critical to fighting cancer, and accessible and convenient options make early detection easier. If you are at low to average risk and are hesitant or unable to visit a healthcare facility, at-home solutions can provide an alternative that fits into your lifestyle and empowers you to take control of your health.
eDrugstore Can Help
With this in mind, we offer an at-home, mail-in colorectal cancer screening test that brings the screening process to the comfort of your home. Our at-home kit tests for the presence of blood in your stool, which may indicate early-stage colorectal cancer.
It takes only five minutes to collect a sample for the test, and you’ll have your results back in two to five days.
Taking the time for regular colorectal screening is a simple way to look out for your health, and it brings with it the peace of mind of knowing you’re taking positive steps to keep colorectal cancer at bay. Order your colorectal cancer screening test today.
James West is a seasoned health and wellness writer with a focus on topics related to physiology, sleep, and men’s health. He has contributed articles on a range of subjects, from erectile dysfunction treatments and sleep aids to hair loss, providing well-researched insights to help readers make informed health decisions.