Which chromosome abnormality is associated with OPLL?

Which chromosome abnormality is associated with OPLL?

• A. Chromosome 6 Abnormality
• B. Chromosome 3 Abnormality
• C. Chromosome 12 Abnormality
• D. No Chromosome Abnormality

Answer: (A)

Genetic predisposition plays a role in OPLL, with families showing higher risk, which points to inherited factors influencing whether the ligament ossifies. The best-supported link from studies is a region on chromosome 6 that has been repeatedly associated with OPLL, suggesting that variants in or near genes on chromosome 6 can increase susceptibility to ossification of the posterior longitudinal ligament. While the exact gene and mechanism are still being studied and may vary among populations, this chromosome 6 abnormality is the most consistently reported genetic association for OPLL. Other chromosomes have not shown the same consistent evidence, and saying there is no chromosome abnormality would ignore the established link to chromosome 6.

Genetic predisposition plays a role in OPLL, with families showing higher risk, which points to inherited factors influencing whether the ligament ossifies. The best-supported link from studies is a region on chromosome 6 that has been repeatedly associated with OPLL, suggesting that variants in or near genes on chromosome 6 can increase susceptibility to ossification of the posterior longitudinal ligament. While the exact gene and mechanism are still being studied and may vary among populations, this chromosome 6 abnormality is the most consistently reported genetic association for OPLL. Other chromosomes have not shown the same consistent evidence, and saying there is no chromosome abnormality would ignore the established link to chromosome 6.