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Light and Electron Microscopic Observation in the Frozen-thawed Mouse Testicular Tissues  

Han, Sang-Chul (Laboratory of Reproductive Biology and Infertility, Samsung Cheil Hospital & Women's Healthcare Center, Sungkyunkwan University School of Medicine)
Song, Sang-Jin (Laboratory of Reproductive Biology and Infertility, Samsung Cheil Hospital & Women's Healthcare Center, Sungkyunkwan University School of Medicine)
Lee, Sun-Hee (Laboratory of Reproductive Biology and Infertility, Samsung Cheil Hospital & Women's Healthcare Center, Sungkyunkwan University School of Medicine)
Oh, Seung-Han (Department of Life Science, College of Natural Science Soonchunhyang University)
Koong, Mi-Kyung (Department of Obstetrics & Gynecology, Samsung Cheil Hospital & Women's Healthcare Center, Sungkyunkwan University School of Medicine)
Park, Yong-Seog (Laboratory of Reproductive Biology and Infertility, Samsung Cheil Hospital & Women's Healthcare Center, Sungkyunkwan University School of Medicine)
Publication Information
Clinical and Experimental Reproductive Medicine / v.30, no.2, 2003 , pp. 127-133 More about this Journal
Abstract
Objective: The aim of this study was to investigate the morphological aspects of testicular tissue before and after freezing-thawing by light and transmission electron microscopy. Methods: Tissue biopsies were carried out on mouse testis for freezing. Samples in medium containing 20% glycerol were frozen by computer-controlled freezing program. The effect of freezing-thawing on the structural change of testicular tissues were examined by light and electron microscopy. Results: The freezing-thawing procedure had no significant effect on tubular diameter. However, it caused folding of the lamina propria, and notable damage to Sertoli cells, spermatogonia and spermatocytes. The cells were detached, desquamated from the basal lamina and had increased vacuolization. Round spermatids, elongated spermatids and spermatozoa were less affected, and most of them maintained their normal structure. Conclusions: The structure of spermatogonia, spermatocyte and basal compartments in seminiferous epithelium was significantly altered by freezing-thawing procedure of mouse testicular tissues. Thus, we need to develop a more reliable method for the cryopreservation of testicular tissues.
Keywords
Freezing-thawing; Ultrastructure; Testicular tissues; Seminiferous tubule;
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