Genetics and Hormones in Testicular Descent*

Marko Kaleva and Jorma Toppari

Download PDF

Testicular descent is an essential part of normal male sexual development. Any anomaly that disrupts normal testicular descent will be clinically evident as cryptorchidism. Several factors, such as Hoxa-10, epidermal growth factor (EGF), calcitonin gene-related peptide (CGRP), and hormones, especially androgens and insulin-like factor 3

Leydig cell clustering and Reinke crystal distribution in relation to hormonal function in adult patients with testicular dysgenesis syndrome (TDS) including cryptorchidism

Rikke R. Soerensen, Trine H. Johannsen, Niels E. Skakkebaek, Ewa Rajpert-De Meyts

Download PDF

OBJECTIVE: Testicular dysgenesis syndrome (TDS) comprises testicular germ cell cancer, cryptorchidism and some cases of male infertility and hypospadias, which can be linked to impairment of intrauterine gonadal development. Among histological signs of TDS, large Leydig cell (LC) clusters (micronodules) are frequently present. This study aimed to investigate possible associations …

Testicular Descent

Charalampos Mamoulakis, Spyridon Antypas, Frank Sofras, Atsushi Takenaka, Nikolaos Sofikitis

Download PDF

Normal testicular descent (TD) is known to be a complex, multistage process involving the interplay of different anatomical structures, hormones, environmental and genetic factors, but its purpose and the exact etiology of TD impairment remain largely unknown …