Fingerprint pattern differences in early- and late-onset primary degenerative dementia

Area of Science:

• Dermatoglyphics
• Neurology
• Genetics

Background:

• Dermatoglyphic patterns, specifically fingerprint patterns, have been explored for potential associations with various medical conditions.
• Primary degenerative dementia encompasses conditions with an early or late onset, suggesting possible distinct underlying pathologies.

Purpose of the Study:

• To investigate the frequency distribution of major fingerprint patterns in men with early-onset dementia, late-onset dementia, and control subjects.
• To determine if specific fingerprint patterns correlate with the onset age of primary degenerative dementia.

Main Methods:

• A comparative study analyzing fingerprint patterns (ulnar loops, radial loops, arches, whorls) in three groups: early-onset dementia (n=47), late-onset dementia (n=35), and controls (n=100).
• Statistical analysis to compare the frequency of fingerprint patterns between the dementia groups and the control group.

Main Results:

• Patients with early-onset dementia exhibited a significantly higher frequency of ulnar loops compared to the control group.
• No significant difference in fingerprint pattern distribution was observed between late-onset dementia patients and the control group.

Conclusions:

• The increased prevalence of ulnar loops in early-onset dementia suggests a potential biological marker differentiating it from late-onset dementia.
• These dermatoglyphic findings may indicate distinct etiologies or developmental pathways for early- versus late-onset primary degenerative dementia.