The Immune System

Are autoimmune diseases diseases of affluence? A scientific exploration

7 August 2023
Jacob Müller

In modern society, autoimmune diseases have become increasingly common conditions, where the body's immune system targets its own tissues. Although genetic predisposition plays a role, growing scientific research suggests that factors of affluence significantly influence the onset and exacerbation of these conditions.

This article takes a critical look at the relationship between factors of affluence and autoimmune diseases. We explore how changes in lifestyle, dietary patterns, environmental influences, and stress levels have promoted the rise of autoimmune diseases in modern societies.

What are autoimmune diseases?

Autoimmune diseases are a complex group of conditions where the immune system, which normally protects the body from harmful invaders such as bacteria and viruses, mistakenly attacks healthy cells and tissues. In a healthy body, the immune system functions as a line of defense, producing antibodies to fight infections and recognizing the body's own cells as 'self'. However, in autoimmune diseases, this process is disrupted, and the immune system begins to react as if the body's own cells are foreign invaders.

The result of this erroneous immune response is inflammation and damage to various parts of the body. Autoimmune diseases can affect virtually any organ or tissue, and therefore the symptoms and consequences vary greatly from disease to disease. Some common autoimmune diseases include rheumatoid arthritis, systemic lupus erythematosus (SLE), type 1 diabetes, multiple sclerosis, inflammatory bowel diseases (such as the leaky gut syndrome, Crohn's disease and ulcerative colitis), and autoimmune thyroiditis (such as Hashimoto's disease and Graves' disease).

Several factors contribute to the development of autoimmune diseases. Genetic predisposition plays a role, as autoimmune diseases often occur in families. However, environmental factors such as infections, stress, diet, hormonal changes, and exposure to certain chemicals can also play a role in the onset and exacerbation of these conditions.

Autoimmune diseases and our western society

In our modern society, we see a striking increase in autoimmune diseases compared to traditional societies. This trend has led researchers to wonder about the specific factors that contribute to this. Various aspects of our modern life can play a role in increasing the risk of developing autoimmune diseases:

1. Changing dietary patterns

In traditional societies, a diet rich in fibers, fresh fruits, vegetables, and unprocessed foods was generally followed. Modern Western diets, on the other hand, often contain an excess of processed foods, added sugars, refined carbohydrates, and saturated fats. These changes in dietary patterns can disrupt the balance of gut microbes and promote inflammation, which may contribute to the onset of autoimmune diseases.

2. Lifestyle and stress

Modern societies are often characterized by high levels of stress, associated with factors such as prolonged working hours, social pressures, and constant connectivity through technology. Chronic stress can negatively impact the immune system and enhance inflammation in the body, increasing the risk of autoimmune diseases.

3. Reduced exposure to microbes

In traditional societies, people were often more exposed to a wide range of microbes in their environment, such as bacteria and parasites. This exposure has played a role in modulating and training the immune system. In our modern, highly industrialized environments, exposure to microbes is often reduced as a result of hygienic measures, antibiotics, and the use of purified water and food. This can make the immune system overactive and lead to autoimmune diseases.

4. Increased exposure to environmental pollutants

Modern societies are faced with a wide range of environmental pollutants, including chemicals in air, water, and food, as well as exhaust gases and industrial emissions. Exposure to these pollutants can enhance inflammation in the body and increase the risk of autoimmune diseases.

New therapies against autoimmune diseases

New therapeutic approaches for autoimmune diseases offer hope for millions of people worldwide who suffer from these often debilitating conditions. While traditional treatments focus on suppressing the overactive immune system and reducing inflammation, new therapies aim to address the underlying causes of autoimmune diseases and modulate the immune system in a more targeted and specific manner.

1. Biologic therapies

These therapies use biologically derived substances, such as monoclonal antibodies, to block or inhibit specific molecular targets in the immune system. This approach has led to the development of drugs that target cytokines, such as tumor necrosis factor (TNF), interleukins, and other immune molecules that play a role in autoimmune diseases. Biologic therapies have proven effective in conditions such as rheumatoid arthritis, inflammatory bowel diseases, and psoriasis.

2. Immunotherapy

This approach focuses on regulating the immune system through allergens, vaccines, or other substances that can modulate the immune response. For example, allergen immunotherapy is used in autoimmune diseases such as allergic asthma and allergic rhinitis to alter the immune response to allergens and reduce symptoms. Vaccines are also being investigated

3. Cell therapies

This approach involves the use of specific immune cells, such as T-cells or stem cells, to modulate the immune system or repair damaged tissues. For example, stem cell transplantation is being investigated as a treatment option for autoimmune diseases such as multiple sclerosis and systemic lupus erythematosus, using the patient's own stem cells to reset the immune system.

4. Microbiota modulation

This approach focuses on restoring a healthy gut flora to balance the immune system. Research suggests that disruptions in the gut microbiota may play a role in the onset and exacerbation of autoimmune diseases. Therefore, probiotics, prebiotics, and fecal microbiota transplantation are being investigated as potential therapeutic options for these conditions.

Conclusion

Affluence factors in Western societies, such as changes in dietary patterns, lifestyle, stress levels, and environmental pollutants, play a clear role in increasing the risk of the onset and exacerbation of autoimmune diseases. However, with continued advancements and innovation in medical science, there is hope that new therapies could revolutionize the treatment of autoimmune diseases and provide a better quality of life for those who suffer from them.