About Sitosterolemia

What is Sitosterolemia?

Sitosterolemia is a rare inherited disorder that affects the body's ability to metabolize dietary sterols, such as plant sterols and cholesterol. People with sitosterolemia have an increased risk of developing premature atherosclerosis, which is the hardening and narrowing of the arteries due to the buildup of fatty deposits. Symptoms of sitosterolemia include abdominal pain, fatigue, and high cholesterol levels. Treatment typically involves dietary changes, medications, and lifestyle modifications.

What are the symptoms of Sitosterolemia?

The most common symptoms of Sitosterolemia include:

-High levels of cholesterol and other fats in the blood
-Enlarged liver and spleen
-Xanthomas (fat deposits under the skin)
-Arterial calcification
-Abnormal bone growth
-Kidney stones
-High blood pressure
-Heart disease
-Stroke
-Liver disease
-Diabetes
-Growth retardation
-Impaired vision
-Impaired hearing
-Impaired speech
-Impaired coordination
-Impaired balance
-Impaired memory
-Depression
-Anxiety
-Fatigue
-Muscle weakness
-Joint pain
-Skin rashes

What are the causes of Sitosterolemia?

Sitosterolemia is a rare inherited disorder caused by mutations in the ABCG5 and ABCG8 genes. These genes are responsible for the production of proteins that help regulate the absorption and excretion of cholesterol and other sterols in the body. Mutations in these genes can lead to an accumulation of sterols in the body, resulting in the symptoms of sitosterolemia.

What are the treatments for Sitosterolemia?

The primary treatment for sitosterolemia is dietary management. This includes avoiding foods that are high in plant sterols, such as vegetable oils, nuts, and seeds. Additionally, individuals should limit their intake of foods that are high in cholesterol, such as red meat, egg yolks, and full-fat dairy products.

In some cases, medications may be prescribed to help reduce the levels of plant sterols in the blood. These medications include statins, fibrates, and bile acid sequestrants. Additionally, some individuals may benefit from taking omega-3 fatty acid supplements.

What are the risk factors for Sitosterolemia?

1. Genetic predisposition: Sitosterolemia is an autosomal recessive disorder, meaning that it is inherited from both parents.

2. Diet: Eating a diet high in plant sterols, such as those found in nuts, seeds, and vegetable oils, can increase the risk of developing Sitosterolemia.

3. Age: Sitosterolemia is more common in children and young adults.

4. Gender: Men are more likely to develop Sitosterolemia than women.

Is there a cure/medications for Sitosterolemia?

Yes, there is a cure for Sitosterolemia. The main treatment is a low-fat diet and medications to reduce cholesterol levels. These medications include statins, bile acid sequestrants, and cholesterol absorption inhibitors. Additionally, lifestyle changes such as regular exercise and quitting smoking can help reduce cholesterol levels.