SPAG17 Is Required for Male Germ Cell Differentiation and Fertility.

encodes a protein present in the axoneme central pair complex of motile cilia and flagella. A mutation in this gene has been reported to be associated with infertility caused by defects in sperm motility. Here, we report that knockout mice are infertile because of a severe defect in spermatogenesis.

Endoscopic treatment for suprapancreatic biliary stricture following blunt abdominal trauma.

Objectives: Suprapancreatic biliary stricture associated with blunt abdominal trauma is extremely rare. Therefore, no definitive treatment modality for this stricture has been fully established. This study was designed to evaluate the efficacy and long-term follow-up of endoscopic treatment for suprapancreatic biliary stricture following blunt abdominal trauma.

Primary carcinoid tumor of the bilateral testis associated with carcinoid syndrome.

Carcinoid tumors derived from neuroendocrine cells can release serotonin and other vasoactive substances into the systemic circulation, resulting in carcinoid syndrome. Testicular carcinoid, a rare disease accounting for less than 1% of all testicular neoplasms, rarely manifests symptoms of carcinoid syndrome. We describe a case of carcinoid syndrome arising from a primary testicular carcinoid tumor.