“These findings highlight the therapeutic potential of tocotrienol-rich fraction in improving reproductive outcomes under maternal inflammatory stress,” wrote researchers from Universiti Teknologi MARA in Malaysia, in the journal Tissue and Cell.
Dr. Ariati Aris, scientific affairs specialist at PhytoGaia, a supplier of palm phytonutrients that emphasises science-driven innovation and offers its branded TocoGaia® full-spectrum palm tocotrienol/tocopherol complex, told NutraIngredients: “Other than allergic asthma, the findings may have relevance to other maternal conditions associated with oxidative and inflammatory stress, particularly pregnancy-induced hypertension (PIH) and preeclampsia.”
However, she noted the importance of acknowledging the study is a preclinical mouse model rather than a human clinical study.
“Mitochondrial dysfunction is recognized as one of the hallmarks of aging, so we believe the implications of this research may extend beyond maternal and embryonic health,” Dr Aris said. “The findings provide an interesting starting point for exploring the broader role of tocotrienols in maintaining mitochondrial health across different stages of life and in the context of healthy aging.”
Embryonic development of mitochondria
Embryos need mitochondria to generate the energy for their cell development. In the early stages, embryonic mitochondria are structurally immature and depend on the health and integrity of mitochondria inherited from the maternal oocyte (the female reproductive cell in the ovary).
Immature mitochondria in the embryo have limited oxidative capacity and are vulnerable to maternal physiological stressors that can disrupt their function.
Conditions associated with oxidative stress and inflammation, such as allergic asthma, can have systemic effects beyond the respiratory system, characterized by elevated levels of reactive oxygen species (ROS) and immune mediators.
Research suggests this may contribute to oxidative damage in reproductive organs, which can affect oocyte mitochondrial function and subsequent embryonic development. However, studies have not investigated the precise mechanisms associated with this process.
The new research therefore sought to provide insight into this relationship and highlights a possible link between tocotrienols, maternal inflammatory stress, embryonic mitochondrial health and early developmental outcomes.
Study details
The researchers used an ovalbumin-induced allergic asthma model in female mice to evaluate the impact of maternal allergic asthma and subsequent supplementation with palm tocotrienol-rich fraction (TRF) on 2-cell embryos.
Allergic asthma “significantly reduced total mitochondrial relative volume, mitochondrial fusion activity, lipid droplet volume and peridroplet mitochondria formation in 2-cell embryos,” the researchers wrote.
Maternal palm TRF supplementation partially restored mitochondrial relative volume, improved mitochondrial fusion and upregulated the expression of key mitochondrial fusion-related genes. These changes were associated with improved early embryonic outcomes.
The researchers acknowledged the limitations of a murine model, cautioned against extrapolating the findings to human pregnancy, and called for further studies to validate the feasibility and potential of TRF in maternal inflammatory disorders.
Dr Aris noted that PhytoGaia will launch an Annual Research Grant program to support research collaborations aligned with its scientific interests.
“We would welcome the opportunity to explore potential research collaborations in this area, including studies that can help clarify the mechanisms through which tocotrienols may influence mitochondrial health,” she said.
Source: Tissue and Cell; doi: https://pubmed.ncbi.nlm.nih.gov/41844020/ ; “Maternal tocotrienol supplementation protects early embryo mitochondria from allergic asthma stress.” Authors: C. I. Wafriy et al.
