Posted on: Monday, September 9th 2024 at 3:00 am
New research suggests flaxseed oil supplementation may significantly improve IVF outcomes for women with decreased ovarian reserve.
Study Overview
Researchers in China conducted a randomized controlled trial to investigate the effects of flaxseed oil supplementation on IVF outcomes in women with decreased ovarian reserve (DOR). The study involved 218 women, divided into a flaxseed oil supplementation group and a control group.
2. Participant Criteria
The study focused on women under 40 with specific indicators of DOR:
- Anti-Müllerian hormone (AMH) <1.2 ng/ml
- Antral follicle count (AFC) <7
- Follicle-stimulating hormone (FSH) between 10 and 25
Women with ovarian tumors, endocrine disorders, or recent fertility treatment were excluded.
3. Supplementation Protocol
The treatment group received:
- Flaxseed oil capsules (500mg alpha-linolenic acid per capsule)
- Dosage: Two capsules daily
- Duration: Starting 30 days before IVF treatment, continuing until clinical pregnancy
4. Impact on Ovarian Stimulation
Flaxseed oil supplementation yielded notable improvements:
- Reduced total dose of recombinant human follicle-stimulating hormone (r-hFSH)
- Shortened stimulation time
- Significantly increased peak estradiol (E2) concentration
5. Improvements in Oocyte and Embryo Quality
The supplementation group showed:
- Higher metaphase II (MII) oocyte rate: 84.6% vs 78.9%
- Improved fertilization rate: 76.9% vs 70.9%
- Enhanced cleavage rate: 63.8% vs 51.7%
- Increased high-quality embryo rate: 54.0% vs 45.6%
- Better blastocyst development rate: 57.3% vs 43.9%
6. Clinical Outcomes
While not all results reached statistical significance, the study found:
- Higher embryo implantation rate in the supplementation group: 51.9% vs 45.5%
- No significant difference in cumulative clinical pregnancy rate, multiple pregnancy rate, or spontaneous miscarriage rate
7. Factors Influencing MII Oocyte Rates
Multivariate analysis revealed:
- Negative factor: Increasing female age
- Positive factors: Higher AMH, increased peak E2 concentration, and flaxseed oil intake
8. Potential Mechanisms
The benefits of flaxseed oil are attributed to its high omega-3 fatty acid content, particularly alpha-linolenic acid. Proposed mechanisms include:
- Improved cell membrane function
- Enhanced immune function
- Regulation of lipid metabolism and gene expression
9. Study Limitations
The researchers noted several limitations:
- Relatively small sample size
- Lack of long-term follow-up to assess live birth rates
- Potential influence of unmeasured lifestyle factors
10. Future Research Directions
The study opens avenues for further investigation:
- Larger, multi-center trials
- Optimization of supplementation protocols
- Deeper exploration of the underlying biological mechanisms
Additional Resources
For comprehensive information on fertility interventions and flaxseed benefits, explore:
GreenMedInfo's Female Fertility Agents Database
GreenMedInfo's Flaxseed Database
References
1. Chu, Qi, Yue-xin Yu, Jing-zi Zhang, Yi-tong Zhang, and Jia-ping Yu. "Effects of Flaxseed Oil Supplementation on Metaphase II Oocyte Rates in IVF Cycles with Decreased Ovarian Reserve: A Randomized Controlled Trial." Frontiers in Endocrinology 15 (February 26, 2024): 1280760. https://doi.org/10.3389/fendo.
2. GreenMedInfo. "Female Fertility Agents." Accessed. https://greenmedinfo.com/
3. GreenMedInfo. "Flaxseed." Accessed. https://greenmedinfo.com/
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