A detection model of testis-derived circular RNAs in serum for predicting testicular sperm retrieval rate in non-obstructive azoospermia patients.

Background: Microdissection testicular sperm extraction is an effective method to retrieve sperm from non-obstructive azoospermia patients. However, its successful rate is less than 50%.

Objectives: To identify the predictive value of circular RNAs in serum for sperm retrieval rate in non-obstructive azoospermia patients.