Hypercholesterolemia is a medical condition characterized by chronically high levels of bad cholesterol in the body. Cholesterol, a waxy substance, plays various essential roles such as vitamin D synthesis, production of steroid hormones, and building cell membranes. It also aids in digestion through the synthesis of bile acids.
Healthy cholesterol levels are typically up to 200mg/dL. Any count ranging from 200 to 240 mg/dL is considered borderline, while levels exceeding 240 mg/dL are categorized as “high cholesterol.” Prolonged high levels of bad cholesterol can lead to irreversible damage to the body over time.
Familial Hypercholesterolemia: An Inherited Risk for Cardiovascular Diseases
Familial hypercholesterolemia (FH) is a hereditary condition characterized by an autosomal dominant genetic defect on chromosome 19. This defect hampers the body’s ability to effectively eliminate LDL cholesterol, commonly known as “bad” cholesterol, from the bloodstream. As a result, individuals with FH face a heightened risk of developing cardiovascular diseases and other related complications.
If one parent carries the FH mutation, their children have a 50 percent chance of inheriting the condition. However, when both parents possess the defect, the child’s risk of experiencing a cardiac event or developing heart disease during childhood significantly increases.
Other Factors Contributing to High Cholesterol Levels
In addition to genetic factors, there are other causes that can contribute to persistently high cholesterol levels. Some blood pressure medications may have the unintended effect of reducing the levels of good cholesterol while increasing triglyceride levels. This can result in an imbalance that leads to high cholesterol. For instance, certain older beta blockers that are commonly prescribed for heart failure have been found to elevate cholesterol levels, particularly in individuals who already have borderline cholesterol issues, hypertension, or hyperglycemia.
Furthermore, poor lifestyle choices can significantly impact cholesterol levels. Regular consumption of foods that are high in saturated or trans fats can contribute to the accumulation of bad cholesterol in the body. Additionally, smoking has been shown to increase bad cholesterol levels, further exacerbating the problem.