Does a higher ratio of serum calcium to magnesium increase the risk for postmenopausal breast cancer?
Level 5 - mechanism / opinion, no new human data
Hypothesis paper based on mechanistic reasoning with no empirical human data
PubMed 20371155 · doi:10.1016/j.mehy.2010.02.037
What was done
This was a theoretical hypothesis paper proposing a biological rationale for how an elevated serum calcium-to-magnesium (Ca/Mg) ratio may increase the risk of postmenopausal breast cancer. The authors synthesized mechanistic concepts involving magnesium's role in DNA repair, dietary magnesium deficits, and TRPM7-mediated calcium influx.
What was found
The abstract reports no empirical data, clinical trial results, or numerical measurements; it describes a conceptual mechanistic model.
Why it matters
It suggests that inconsistent findings linking calcium supplementation or serum calcium to breast cancer risk might be clarified by evaluating the balance between calcium and magnesium rather than calcium alone.
Limits
The publication provides no original human data, observational cohorts, or experimental tests. The proposed association between serum Ca/Mg ratio and breast cancer remains an untested hypothesis.
Cited by
- supports Magnesium is required for cellular DNA repair mechanisms, and chronic magnesium deficiency impairs the repair of DNA damage, increasing the risk of oncogenic mutations.