Identifying Genome Variants in Non-Obstructive Azoospermia (NOA) or Primary Ovarian Insufficiency (POI)

Study Description:

PRDM9 and the piRNA pathway have well established roles in meiosis and are known to cause infertility in mouse, yet have not been systematically evaluated for a role in human infertility. We will utilize a combination of genome sequencing, targeted PacBio sequencing, and in vitro assays to evaluate these compelling candidates as causative for human infertility. All participants will be asked to provide saliva or blood samples as a source of genomic DNA for sequencing. A small subset of participants who undergo surgery as part of their diagnosis and treatment plan will be asked to consent to research use of leftover testicular biopsies from these procedures.

Objectives:

Primary Objective:

To determine the sequence of PRDM9 and noncoding piRNA clusters in a cohort of individuals with infertility. These loci are inherently unstable in the genome, and we hypothesize that sequence variants in these loci are causative for infertility.

Secondary Objectives:

Identify genome variants in novel or previously reported infertility candidate genes. Genome variants in hundreds of genes have been reported as candidates for infertility, and collective data from additional cohorts is needed to evaluate the gene-disease relationship of these infertility candidate genes.

• INCLUSION CRITERIA:

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

• Provision of signed and dated informed consent form
• Stated willingness to comply with all study procedures and availability for the duration of the study
• Adult male or female, of reproductive age
• Clinical diagnosis of NOA, oligospermia, or POI.
• In good general health with no medical history suspected as the cause of infertility.

Exclusion criteria

An individual who meets any of the following criteria will be excluded from participation in this study:

• Current use of medications that may cause infertility (chemotherapy, etc.)
• Pregnant or lactating
• Medical history indicating known common cause of infertility such as karyotype anomalies, Y-chromosome microdeletions, known monogenic causes, or other medical history affecting gamete production (i.e. injuries, surgical operations, infections, radiation, or chemotherapy).