Studies on the development of diluents for the transportation and storage of human semen at ambient temperature

Human Reproduction
R J AitkenM Macnamee

Abstract

Storage of human semen samples at ambient temperature for 24 h resulted in a significant loss of sperm motility from a mean 45.1 +/- 1.8% to 13.8 +/- 1.1% (n = 148). This motility loss was associated with a significant increase in the osmolality of the seminal plasma and the induction of peroxidative damage to the spermatozoa. Both of these detrimental changes could be prevented by diluting the original semen sample 1:1 with a citrate-egg yolk, buffer (CYB). In the presence of this extender all aspects of semen quality were efficiently preserved for 24 h, including sperm movement, penetration of a cervical mucus substitute, the acrosome reaction and sperm-oocyte fusion. CYB extension also permitted the use of chemiluminescent tests of leukocyte contamination to be performed on semen samples stored for 24 h at ambient temperatures. As a preservation medium, CYB was found to be superior to alternative formulations lacking citrate and storage at ambient temperatures was preferable to 4 degrees C. Significant improvements in motility retention were also observed when CYB was supplemented with pentoxifylline, although this treatment significantly stimulated peroxidative damage in the spermatozoa. However, if the pentoxifylline was c...Continue Reading

Citations

Jun 26, 2007·Asian Journal of Andrology·Trevor G Cooper
Mar 4, 2014·Reproductive Biomedicine Online·Annelies ThijssenWillem Ombelet
Nov 10, 2014·Journal of Assisted Reproduction and Genetics·Leyla SatiGabor Huszar
Dec 29, 2000·The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology·A J WillsI P McLaren
Mar 14, 2003·Journal of Andrology·Monica MuratoriElisabetta Baldi

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