Journal
REPRODUCTIVE BIOMEDICINE ONLINE
Volume 20, Issue 6, Pages 789-796Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.rbmo.2010.03.001
Keywords
apoptosis; assisted reproductive techniques; human granulosa cells; infertility; N-acetyl cysteine
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This randomized controlled trial tested the hypothesis that addition of N-acetyl cysteine (NAC) can increase the probability of pregnancy in intracytoplasmic sperm injection (ICSI) cycles using the long agonist protocol. Women undergoing ICSI cycles due to male factor were randomly assigned to receive either long protocol (group A, 38 women) or long protocol plus NAC (group B, 38 women). Clinical pregnancy was the primary outcome. Granulosa cell apoptosis, fertilization rate, number of grade-one embryos and ongoing pregnancy were the secondary outcomes. Clinical pregnancy rate was insignificantly higher in NAC group (52.6%) than control (47.4%). Early and late apoptosis were also insignificantly lower in group B than in group A. Irrespective of the used protocol, there was significant negative correlation between both early and late apoptosis and fertilization rate (both P < 0.001) and the number of good-quality embryos (P = 0.007 and P < 0.001, respectively). Pregnant patients had significantly lower early and late apoptosis than those who didn't achieve pregnancy (P < 0.001). In conclusion, NAC supplementation did not significantly increase the probability of pregnancy in ICSI cycles using long agonist protocol. It appears that granulosa cell apoptosis may be an important prognosticator for ICSI cycle outcome. (C) 2010, Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.
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