[Genetic analysis of an individual with a fragile site at 16q22].

ABSTRACT

OBJECTIVE: To analyze a patient with infertility and a fragile site found at 16q22 by using cytogenetic methods. METHODS: Peripheral blood sample was taken from the patient and subjected to chromosomal karyotyping and single nucleotide polymorphism microarray (SNP-array) analysis. RESULTS: The patient was found to be a mosaicism for a fragile site at 16q22, which has a variable morphology and cannot be induced by folic acid treatment. No abnormality was found by SNP-array analysis. CONCLUSION: A rare fragile site, which can be induced without folic acid treatment, has been identified at 16q22. The strategy of assisted reproduction for such individuals is yet to be explored.