The glucose dehydrogenase gene (Gld) in Drosophila melanogaster exhibits a unique spatial and temporal pattern of expression. GLD expression switches from a non-sex-limited state at the pupal stage to a male-limited state at the adult stage. At the adult stage, the enzyme is restricted to the ejaculatory duct. Within the genus Drosophila, the ejaculatory duct has undergone a simple morphologica...

congenital nasolacrimal duct obstruction (cnldo) is a common disease in children. the classic treatment of cnldo is probing that was done around one year old. however, controversy exists regarding the outcome of probing in children older than one year. this study aimed to find the cure rate of initial probing for cnldo and identify factors producing the failure rate in old age. in this retrospe...

developmental midline perinasal masses in children are rare lesions specifically in association with choristomas. we encountered a 3-year-old boy with epiphora, a striking mass on the nasal bridge and ipsilateral nasal hypoplasia. ct scan imaging showed multiple calcified areas within the tumor in addition to linear defect in frontal bone, hypoplastic left ethmoidal sinus and left nasal cavity,...

Objective: To evaluate the clinical effects of the vesiculoscopy and related endoscopic technique on the treatment of ejaculatory duct obstruction (EDO) and severe, persistent hematospermia in cases that were refractory to conservative treatments by retrospectively analyzing the clinical data of the patients treated in our hospital. Methods: Clinical data from 216 patients with persistent and r...

In patients with male infertility, endorectal magnetic resonance (MR) imaging provides high-resolution images of the prostate gland and ejaculatory apparatus. The multiplanar capability of MR imaging allows production of a detailed map of the reproductive tract for guiding treatment. Causes of male infertility can be classified as congenital, acquired, infectious, or hormonal. Wolifian duct abn...

© Translational Andrology and Urology. All rights reserved. Transl Androl Urol, 2016;5(S1) tau.amegroups.com Background: To assess the long-term follow-up outcomes of a novel diagnostic and therapeutic procedure for persistent or recurrent hemospermia by transurethral seminal vesiculoscopy. Methods: A total of 269 patients with persistent or recurrent hemospermia in our single clinic were succe...

BACKGROUND Retrograde ejaculation can have anatomical, neurogenic, or pharmacological causes. Among these factors, malformation of the prostatic urethra is an uncommon cause. CASE PRESENTATION We describe a 29-year-old Han Chinese man with absence of his verumontanum combined with ejaculatory duct cysts, and no other cause for ejaculatory dysfunction. His verumontanum was replaced by a deep g...