X Chromosome Loss Tied to Infertility
Women with higher LOX levels had more than double the odds of failing to conceive naturally.
By
Mouj Hijazi
May 15, 2026
Clinical Scorecard: X Chromosome Loss Tied to Infertility
At a Glance
Category Detail
Condition Infertility associated with X chromosome loss Key Mechanisms Potential surrogate marker of systemic genomic instability or biologic aging; immune dysregulation Target Population Female patients aged 35-39 years with infertility Care Setting Multicenter clinical research study
Key Highlights
Higher LOX levels in infertile women compared to controls LOX threshold of 0.87% linked to reduced likelihood of natural conception Association strongest in women aged 35-39 years LOX not correlated with assisted reproductive technology outcomes LOX may provide complementary information to ovarian reserve markers Guideline-Based Recommendations
Diagnosis
Evaluate hematopoietic loss of X chromosome (LOX) in women with infertility Management
Consider LOX levels as a potential marker for fertility risk stratification Monitoring & Follow-up
Monitor LOX levels alongside traditional ovarian reserve markers Risks
Higher LOX levels may indicate increased odds of infertility Patient & Prescribing Data
381 female patients with infertility and 123 controls
LOX levels do not correlate with traditional markers like AMH or FSH
Clinical Best Practices
Use LOX as a complementary tool in assessing fertility risk Conduct prospective longitudinal studies to validate LOX's role in fertility Related Resources & Content
