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Review
. 2024 Sep 12;12(11):8515-8524.
doi: 10.1002/fsn3.4427. eCollection 2024 Nov.

The effect of Myo-inositol on improving sperm quality and IVF outcomes: A systematic review and meta-analysis

Marjan Ghaemi  1 , Niloofar Seighali  2 , Arman Shafiee  2   3 , Maryam Beiky  2 , Omid Kohandel Gargari  2 , Alireza Azarboo  1 , Vida Shafti  1 , Kyana Jafarabady  2 , Nasim Eshraghi  1 , Mohammad Haddadi  1 , Razieh Akbari  1 , Zahra Panahi  1 , Sedigheh Hantoushzadeh  1
Affiliations
Review

The effect of Myo-inositol on improving sperm quality and IVF outcomes: A systematic review and meta-analysis

Marjan Ghaemi et al. Food Sci Nutr. .

Abstract

Myo-inositol may be efficient to improve sperm parameters to increase the chance of fertility. Although, the data are controversial. This study aimed to assess the impact of Myo-inositol supplements on semen quality and in vitro fertilization (IVF) outcomes. In this systematic review and meta-analysis, a comprehensive search was conducted in PubMed, Web of Science, and Embase. The objective was to identify relevant human studies that investigated the effects of Myo-inositol treatment on various sperm factors, such as sperm motility, sperm concentration, sperm morphology, viable spermatozoa, spermatozoa with DNA fragmentation, and pregnancy rate. Additionally, the testosterone levels of patients with Oligo-astheno-teratozoospermia (OAT) after Myo-inositol application were considered. The findings of 16 selected studies from 2240 citations indicated significant improvements in several parameters of sperm after Myo-inositol administration. Myo-inositol treatment was associated with a notable increase in total sperm motility (SMD 0.90; 95% CI: 0.34 to 1.46; I 2 = 0%, p = .001) and progressive sperm motility (SMD 1.48; 95% CI: 0.37 to 2.59; I 2 = 0%, p = .008). Additionally, there was a significant improvement in testosterone levels (SMD 0.54; 95% CI: 0.34 to 0.73; I 2 = 0%, p < .0001). Furthermore, Myo-inositol therapy demonstrated a significant decrease in spermatozoa with DNA fragmentation (SMD -1.37; 95% CI: -2.43 to -0.32; I 2 = 85%, p = .01). This study suggests that Myo-inositol therapy has a positive impact on specific sperm parameters, such as total and progressive sperm motility, along with testosterone levels. These findings provide support for the potential benefits of Myo-inositol in improving male fertility parameters related to sperm factors.

Keywords: Myo‐inositol; inositol; meta‐analysis; oligo‐astheno‐teratozoospermia; semen analysis; sperm parameters; systematic review.

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Conflict of interest statement

The authors have no conflict of interest to declare.

Figures

FIGURE 1
FIGURE 1
PRISMA flow diagram.
FIGURE 2
FIGURE 2
Results of meta‐analysis for (a) total sperm motility and (b) progressive sperm motility.
FIGURE 3
FIGURE 3
Results of meta‐analysis for (a) testosterone levels, (b) sperm concentration, (c) sperm normal morphology, (d) viable spermatozoa count, and (e) spermatozoa with DNA fragmentation.
FIGURE 4
FIGURE 4
Meta‐analysis for pregnancy rate among Myo‐inositol treated group.
See this image and copyright information in PMC

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