Vasectomy and testicular cancer.
نویسندگان
چکیده
منابع مشابه
Experimental vasectomy and testicular structure.
We have performed an experimental study on rats and dogs to evaluate the long term effects (from 1 to 12 months) of vasectomy on the structure of the testis. From four months after vasectomy onwards, the specimens showed very important changes in the seminiferous epithelium and Sertoli cells, with an obvious thickening of the basement membrane that supports the epithelium. The deterioration dep...
متن کاملDoes vasectomy accelerate testicular tumour? Importance of testicular examinations before and after vasectomy.
An association between vasectomy and the development of testicular tumors, and the importance of testicular examinations both before and after a vasectomy is discussed. Patients diagnosed with testicular tumors within the last ten years were examined at Bangour General Hospital in Scotland. From 1977-87, 37 patients under age 60 were detected with testicular tumors. 3079 men underwent a vase...
متن کاملAssociation between vasectomy and risk of testicular cancer: A systematic review and meta-analysis
OBJECTIVES A number of researchers have reported that vasectomy is a risk factor for testicular cancer. However, this conclusion is inconsistent with a number of other published articles. Hence, we conducted this meta-analysis to assess whether vasectomy increases the risk of testicular cancer. MATERIALS AND METHODS We identified all related studies by searching the PubMed, Embase, and Cochra...
متن کاملBilateral effect of unilateral vasectomy on testicular testosterone biosynthesis.
Twelve immature male dogs underwent a left vasectomy (group A). An additional five underwent a sham operation (group B). Sixteen weeks after the surgery, the bilateral mean values for caudal epididymal sperm content, the percentage of motile spermatozoa, intratesticular testosterone concentration, and testicular secretion of androgen-binding protein (in vitro) were significantly lower in group ...
متن کاملTesticular function in bulls 10 weeks after unilateral vasectomy.
Five mature dairy bulls were killed 10 weeks after unilateral vasectomy. Testes on the vasectomized side weighed 67% of the contralateral controls (P<.O1) and contained only 34% as many spermatids as the control testes (P<.01). Since a previous report showed little or no change in spermatogenesis in younger bulls at 23 weeks after vasectomy, possibly vasectomy temporarily interrupts spermatogen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: BMJ
سال: 1992
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.304.6829.729