Pre-atherosclerotic lesions in Down syndrome

Area of Science:

• Cardiovascular Pathology
• Genetics and Disease

Background:

• Down syndrome (DS) is associated with an increased risk of various health complications.
• The prevalence and characteristics of atherosclerotic lesions in individuals with Down syndrome require further investigation.

Purpose of the Study:

• To examine the prevalence of pre-atherosclerotic and atherosclerotic lesions in non-institutionalized Down syndrome patients.
• To investigate the potential for an atheroma-free subgroup within the Down syndrome population.

Main Methods:

• Autopsy examination of eight non-institutionalized patients with Down syndrome.
• Histopathological analysis of aortic tissues to identify pre-atherosclerotic and atherosclerotic lesions.

Main Results:

• Pre-atherosclerotic lesions were found with normal prevalence in seven subjects (ages 10-25).
• Atherosclerotic plaques were observed in one 14-year-old subject, contradicting the notion of DS patients being atheroma-free.
• No atheromatous aortic lesions were detected in an older subject (age 50).

Conclusions:

• The findings challenge the assumption that individuals with Down syndrome are completely protected from atherosclerosis.
• The absence of lesions in an older DS patient suggests the possible existence of an atheroma-free subgroup, warranting further research.