Volume 7, Issue 1 (January 2005) 7, 81–85; 10.1111/j.1745-7262.2005.00002.x
Morphological characteristics of spermatozoa before and after renal transplantation
Long-Gen Xu, Shi-Fang Shi, Xiao-Ping Qi, Xiao-Feng Huang, Hui-Ming Xu, Qi-Zhe Song, Xing-Hong Wang, Zong-Fu Shao and Jun-Rong Zhang
1.Renal Transplantation Center, 117th Hospital of PLA, Hangzhou 310013, China
2.Department of Urology, First Affiliated Hospital of Zhejiang University, Hangzhou 310003, China
3Electron Microscope Center, 4th Military Medical University, Xi'an 710000, China
4Zhejiang Family Planning Science and Technology Institute, Hangzhou 3.10006, China
Received: 2003-11-17 Accepted: 2004-10-18
Aim: To investigate the changes of the spermatozoa ultrastructures before and after renal transplantation in uremic patients.
Methods: The sperm of five uremic patients before and after transplantation and four healthy volunteers were collected and examined by scanning electron microscopy.
Results: Abnormal spermatozoa were found in patients pre-transplantation; abnormalities included deletion of the acrosome, absence of the postacrosomal and postnuclear ring, dumbbell-like changes of the head, tail curling, and absence of the mitochondrial sheath in the midsegment. After renal transplantation, most of the spermatozoa became normal.
Conclusion: There are many abnormalities with regard to the appearance and structure of the head, acrosome, mitochondria and tail of the spermatozoa in uremic patients. The majority of the spermatozoa returned to normal after renal transplantation, but a few still presented some abnormalities possibly relating to the administration of immunosuppressants.
Keywords: uremia, renal transplantation, spermatozoa, scanning electron microscopy
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