Familial bilateral cryptorchidism is caused by recessive variants in RXFP2

Abstract excerpt

Background Cryptorchidism or failure of testicular descent is the most common genitourinary birth defect in males. While both the insulin-like peptide 3 (INSL3) and its receptor, relaxin family peptide receptor 2 (RXFP2), have been demonstrated to control testicular descent in mice, their link to human cryptorchidism is weak, with no clear cause–effect demonstrated. Objective To identify the genetic cause of a...

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