A pellet freezing method, one type of rapid freezing protocol, was established for Trichomonas vaginalis. As cryoprotectants, 5-20% dimethylsulfoxide (DMSO), ethylene glycol, propylene glycol, and glycerol were used. Of these, DMSO showed a high protective effect, with a maximum effect at a concentration of 20%. No effect of equilibration time was recognized with any of the cryoprotectants. Therefore, the optimal condition was deemed 20% DMSO without equilibration. The pellet freezing method was also compared with the conventional slow cooling protocol. The survival rate was 73 +/- 8% with the slow cooling protocol and 48 +/- 4% with the pellet freezing method. The delay in growth with the pellet freezing method was no more than 5.4 h compared with the slow cooling protocol, suggesting its validity as a technique for cryopreservation of T. vaginalis.
A simple and rapid method for cryopreservation of Trichomonas vaginalis. Publishing Authors By Initials
A simple and rapid method for cryopreservation of Trichomonas vaginalis. Journal Published:
PUBLICATION TYPE: Journal Article
Journal: Parasitology research
VOLUME: 101
Page Numbers: 907-11
Journal Abbreviation: Parasitol. Res.
ISSN: 0932-0113
DAY: 13
MONTH: 05
YEAR: 2007
A simple and rapid method for cryopreservation of Trichomonas vaginalis. Information
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LANGUAGE: eng
NlmUniqueID: 8703571
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Grant and Affiliation Information for A simple and rapid method for cryopreservation of Trichomonas vaginalis.
AFFILIATION: Division of Medical Technology, Department of Health Sciences, Hokkaido University School of Medicine, North-12, West-5, Kita-ku, Sapporo, 060-0812, Japan, matsuo@cme.hokudai.ac.jp.
Country: Germany
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MEDLINETA: Parasitol Res
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