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  • Title: Linkage of early-onset osteoarthritis and chondrocalcinosis to human chromosome 8q.
    Author: Baldwin CT, Farrer LA, Adair R, Dharmavaram R, Jimenez S, Anderson L.
    Journal: Am J Hum Genet; 1995 Mar; 56(3):692-7. PubMed ID: 7887424.
    Abstract:
    Calcium pyrophosphate-deposition disease (CPDD), also called "chondrocalcinosis" or "pseudogout," is a disorder characterized by the deposition of calcium-containing crystals in joint tissue, which leads to arthritis-like symptoms. The presence of these crystals in joint tissue is a common finding in the elderly, and, in this population, there is a poor correlation with joint pain. In contrast, early-onset CPDD has been described in several large families in which the disease progresses to severe degenerative osteoarthritis (OA). In these families, an autosomal dominant mode of inheritance is observed, with an age at onset between the 2d and 5th decades of life. In this report, we describe a large New England family with early-onset CPDD and severe degenerative OA. We found genetic linkage between the disease in this family and chromosome 8q, with a multipoint lod score of 4.06. These results suggest that a defective gene at this location causes the disease in this family.
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