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Del(10)(q22.3q24.1) associated with juvenile polyposis

✍ Scribed by Jacoby, Russell F.; Schlack, Steven; Sekhon, Gurbax; Laxova, Renata


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
178 KB
Volume
70
Category
Article
ISSN
0148-7299

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✦ Synopsis


Juvenile polyps are the most frequent gastrointestinal polyps with a malignant potential for which the genetic basis is unknown. Juvenile polyps, with a normal epithelium but hypertrophic lamina propria, are histologically quite distinct from adenomatous polyps which have dysplastic changes in epithelial nuclei. Furthermore, the adenomatous polyposis coli (APC) gene on Chr 5, mutated somatically in adenomatous polyps and mutated in the germline of patients with familial adenomatous polyposis, is not linked to hereditary juvenile polyposis. We provide the first report indicating that a tumor suppressor gene associated with juvenile polyposis may be located at 10q22.3q24.1. Cytogenetic studies of a patient with juvenile polyposis and multiple congenital abnormalities of the head, extremities, and abdomen revealed a de novo interstitial deletion of Chr 10 as the only defect, del(10)(10q22.3q24.1).


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## Abstract ## Objective To identify chromosome regions likely to harbor genes that predispose to the development of systemic lupus erythematosus (SLE) by analyzing a full genome scan in nuclear families ascertained for siblings with SLE. ## Methods Approximately 400 multiallelic markers spaced