Azoospermia factor c microdeletions and outcomes of assisted reproductive technology: a systematic review and meta-analysis

荟萃分析 活产 医学 辅助生殖技术 妇科 置信区间 无精子症 优势比 无精子症因子 卵胞浆内精子注射 不育 产科 怀孕 生物 内科学 遗传学
作者
Stacy Colaco,Deepak Modi
出处
期刊:Fertility and Sterility [Elsevier BV]
卷期号:121 (1): 63-71 被引量:6
标识
DOI:10.1016/j.fertnstert.2023.10.029
摘要

Objective

To investigate whether Azoospermia Factor c (AZFc) microdeletions affect Assisted Reproductive Technology (ART) outcomes.

Design

Systematic review and meta-analysis.

Setting

Not applicable.

Patients

Infertile men with and without AZFc microdeletions.

Intervention(s)

Electronic databases were searched for case-control studies reporting sperm retrieval rates and outcomes of ART in infertile men with and without AZFc microdeletions from inception to April 2023. Study quality was assessed using the Newcastle-Ottawa Scale. Summary effect sizes (odds ratio [OR] with 95% confidence interval [CI]) were calculated for both categories of infertile men.

Main Outcome Measures

The primary outcome was successful sperm retrieval and the secondary outcomes were outcomes of ART.

Results

Case-control studies reporting sperm retrieval rates and ART outcomes in men with AZFa and AZFb deletions were unavailable. On the basis of the data from 3,807 men, sperm retrieval rates were found to be higher in men with AZFc microdeletions compared to their non-deleted counterparts [OR = 1.82, 95% CI 0.97, 3.41], but the difference was not statistically significant. A significantly lower fertilization rate (OR = 0.61, 95% CI [0.50, 0.74]), clinical pregnancy rate (OR = 0.61, 95% CI [0.42, 0.89]), and live birth rate (OR = 0.54, 95% CI [0.40, 0.72]) were observed in men with AZFc deletions compared with men without deletions. There was no statistically significant difference in rates of embryo cleavage, blastocyst formation, good-quality embryos, implantation, and miscarriage between the two groups. On correcting for female factors, the fertilization rate (OR = 0.76, 95% CI [0.71, 0.82]), cleavage rate (OR = 0.54, 95% CI [0.41, 0.72]), clinical pregnancy rate (OR = 0.39, 95% CI [0.30, 0.52]), and live birth rate (OR = 0.48, 95% CI [0.35, 0.65]) were significantly lower in men with AZFc deletions compared with controls.

Conclusions

Presence of AZFc microdeletions adversely affects outcomes of ART in infertile men. Further in-depth studies delineating the role of the AZF genes in embryonic development are necessary to understand the full-impact of this finding.

Clinical Trial Registration Number

CRD42022311738.
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