Coenzyme Q10 and Inositols: Mechanisms and Clinical Outcomes
Mitochondrial deterioration is a hallmark of oocyte aging, characterized by declining ATP production and increased reactive oxygen species. Coenzyme Q10 (CoQ10) targets specific hub proteins and restores mitochondrial electron transport chain efficiency. Meta-analytic data encompassing 1,529 participants demonstrate that CoQ10 pretreatment significantly enhances clinical pregnancy rates and oocyte yield while depressing cycle cancellation and miscarriage rates.
Similarly, inositol isomers—specifically myo-inositol and D-chiro-inositol—act as second messengers for insulin signaling. In populations with insulin resistance or PCOS, inositol administration improves oocyte quality, lowers androgen excess, and elevates fertilization rates from 71.61% to 77.66% in retrospective cohorts. These interventions represent the most biochemically grounded category of reproductive supplements.
DHEA and Testosterone in Diminished Ovarian Reserve
The use of androgen precursors such as dehydroepiandrosterone (DHEA) and testosterone to rescue poor ovarian response remains one of the most contentious areas in reproductive medicine. Early meta-analyses of DHEA adjuvant therapy reported encouraging clinical pregnancy rate increases (RR 2.13; 95% CI 1.12-4.08) among women with diminished ovarian reserve. However, concurrent systematic reviews evaluating restricted or smaller trial cycles argue that data remains insufficient to confirm definitive live birth improvements.
Testosterone supplementation similarly shows elevated oocyte counts and promising live birth trends across limited randomized cohorts (n=368). Critics emphasize that while biochemical markers like AMH or AFC may shift transiently, robust, multi-center randomized controlled trials proving sustained live-birth superiority over standard IVF protocols are urgently needed.