Laokirkkiat, PitakKunathikom, SomboonChoavaratana, RoungsinPetyim, SomsinPrechapanich, Japarath2009-05-272009-05-272007-02-23Laokirkkiat P, Kunathikom S, Choavaratana R, Petyim S, Prechapanich J. Comparison between sperm treated with pentoxifylline and 2-deoxyadenosine using hypo-osmotic swelling test. Journal of the Medical Association of Thailand. 2007 Feb; 90(2): 211-5http://imsear.searo.who.int/handle/123456789/38823Chotmaihet Thangphaet.OBJECTIVE: To compare the percentage of sperm tail membrane swelling under hypo-osmotic conditions between sperm treated with pentoxifylline and 2-deoxyadenosine. DESIGN: Experimental in vitro study. MATERIAL AND METHOD: Thirty normal semen samples from male partners of infertile couples were collected. After sperm preparation by two-layer Percoll gradient method, each sperm sample was divided into three specimens. Pentoxifylline and 2-deoxyadenosine were separately added into two specimens, while the third specimen was used as a control. Hypo-osmotic swelling test was performed in all specimens. Percentage of swollen spermatozoa in each specimen was evaluated. RESULTS: The mean percentage of swollen spermatozoa in the semen samples supplemented with pentoxifylline and 2-deoxyadenosine were both significantly higher than those in the control (82.8 +/- 7.7 and 83.0 +/- 9.5 vs 70.8 +/- 12.7; p < 0.001). There was no significant differences of swollen spermatozoa between pentoxifylline and 2-deoxyadenosine (p = 0.898). CONCLUSION: Addition of pentoxifylline and 2-deoxyadenosine to the sperm prepared by the two-layer Percoll gradient method can almost equally enhance the sperm membrane integrity. Therefore, it may be beneficial to add these compounds to sperm preparation for use in assisted reproduction.engDeoxyadenosines --pharmacologyEnzyme Inhibitors --pharmacologyHumansInfertility, MaleMaleMutagens --pharmacologyPentoxifylline --pharmacologyReproductive Techniques, AssistedSpermatozoa --drug effectsComparative Study