Lipidoses are rare genetic disorders characterized by defects of the digestive system that impair the way the body uses dietary fat. When the body is unable to properly digest fats, lipids such as cholesterol, sphingolipids or glycolipids may accumulate in body tissues in abnormal amounts. It has been also suggested that molecular mechanisms leading to development of human diseases, including obesity, diabetes type II and atherosclerosis, consist of impaired transport and storage of lipids, as well as disturbed structure and function of lipid membrane microdomains. In this review we discuss probable mechanisms, including role of lipid membrane microdomains, which may participate in pathogenesis of lipid storage diseases such as Niemann-Pick type A/B and type C, as well as Gaucher type I diseases.
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