Hemochromatosis

Hemochromatosis is a condition in which the body accumulates excessive amounts of iron and loses the ability to effectively regulate its absorption and distribution. Iron is a key element for the functioning of enzymes, mitochondria, and detoxification systems; however, its excess becomes a pro-oxidant factor and damages tissues. The liver, pancreas, heart, and endocrine system are primarily affected.

Normally, the body strictly controls iron absorption through the intestines. In hemochromatosis, this mechanism is disrupted, and iron continues to accumulate even with sufficient or already elevated stores. Over time, this leads to tissue overload and impaired function.

Causes of Hemochromatosis

Hemochromatosis can develop through various mechanisms, but the key factor is the disruption of iron metabolism regulation:

• hereditary hemochromatosis: associated with mutations in genes (most often HFE), which reduces the control of iron absorption in the intestines;
• secondary hemochromatosis: develops against the background of chronic conditions accompanied by iron overload (e.g., frequent blood transfusions or blood formation disorders);
• liver diseases: disrupt iron metabolism and its distribution;
• alcohol: exacerbates liver damage and worsens iron accumulation;
• metabolic disorders: insulin resistance and chronic inflammation can affect the regulation of hepcidin – a key hormone in iron metabolism.

How Iron Damages the Body

Excess iron is not actively excreted and begins to deposit in tissues. In its free form, it participates in reactions that generate free radicals, increasing oxidative stress:

• damage to cell membranes and mitochondria;
• disruption of liver function and development of fibrosis;
• reduced insulin sensitivity;
• inflammatory processes in tissues;
• damage to the heart muscle and conduction system of the heart.

Symptoms and Manifestations

In the early stages, hemochromatosis often progresses without pronounced symptoms. As iron accumulates, systemic disorders appear:

• chronic fatigue and decreased energy;
• decreased exercise tolerance;
• joint pain, especially in small joints;
• skin darkening (gray-bronze tint);
• reduced libido and hormonal disorders;
• disruptions in carbohydrate metabolism;
• enlargement of the liver and signs of overload;
• heart rhythm disturbances.

Diagnosis: What to Pay Attention To

Assessment of iron status should be comprehensive. One indicator does not reflect the real picture:

• ferritin: reflects iron stores but also increases during inflammation;
• serum iron: shows the current level in the blood;
• transferrin and its saturation: one of the key markers of iron overload;
• total iron-binding capacity (TIBC): helps assess iron transport;
• liver enzymes: reflect the degree of liver involvement;
• genetic testing: confirms the hereditary form.

The key diagnostic marker is a high percentage of transferrin saturation, especially in combination with elevated ferritin.

Approaches to Reducing Iron Overload

The main task is to reduce excess iron and minimize tissue damage:

• phlebotomy: the primary method that effectively reduces iron stores;
• iron chelators: used when phlebotomy is not possible;
• control of inflammation and metabolism: affects the regulation of iron metabolism;
• dietary correction: reducing factors that enhance iron accumulation;
• liver support: working with mitochondria and the antioxidant system.

Nutrition and Lifestyle. This is not about completely excluding foods but about controlling factors that affect iron absorption and accumulation:

• limiting the combination of iron with substances that enhance its absorption (e.g., high doses of vitamin C taken simultaneously with iron);
• moderation in alcohol consumption;
• monitoring metabolic status (insulin, glucose);
• maintaining normal intestinal function;
• regular monitoring of blood parameters.

Prognosis and Importance of Early Detection

The main problem of hemochromatosis is its prolonged asymptomatic course, which often leads to its detection only at the stage of complications.

With timely detection and control of iron levels, organ damage can be prevented.

Regular monitoring of ferritin and transferrin saturation is especially important for individuals with a family predisposition, chronic liver diseases, and metabolic disorders.