Prenatal exclusion of Stickler syndrome
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Updated: Oct 17, 2026

Semiconductor Sequencing for Preimplantation Genetic Testing for Aneuploidy
Published on: August 25, 2019
J Zlotogora1, M Granat, R G Knowlton
1Department of Human Genetics, Hadassah Medical Center, Jerusalem, Israel.
Abstract:
Stickler syndrome is an autosomal dominant disorder of the connective tissue which includes ocular and systemic manifestations. We report on a large kindred in which we were able to demonstrate very tight linkage between the disease and the type II collagen gene (COL2A1) (LOD score 3.91 at theta = 0). In a family in which the father and one of his daughters were severely affected, DNA analysis from a chorionic villus sample demonstrated that the fetus possessed the normal allele of COL2A1. Thereafter a normal child was born.
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