http://www.unboundmedicine.com/medline/ebm/record/19172341/abstract/Milk_ribonuclease_enriched_lactoferrin_induces_positive_effects_on_bone_turnover_markers_in_postmenopausal_women_
Bharadwaj S, Naidu AG, Betageri GV, Prasadarao NV, Naidu AS
Milk ribonuclease-enriched lactoferrin induces positive effects on bone turnover markers in postmenopausal women.
[JOURNAL ARTICLE]
Osteoporos Int 2009 Jan 27.
Current treatments for postmenopausal osteoporosis suffer from side effects. Safe and natural milk proteins,
ribonuclease, and lactoferrin promote formation of new capillaries and bone formation. A ribonuclease-enriched lactoferrin
supplement studied here, demonstrates significant reduction in resorption and increase in formation, towards restoring the
balance of bone turnover within 6 months.
INTRODUCTION: Osteoporosis, a major health issue among postmenopausal women, causes increased bone resorption and
reduced bone formation. A reduction in angiogenesis could also contribute to this imbalance. Current treatments such as
hormone replacement therapy and bisphosphonates have drawbacks of severe side effects. Milk ribonuclease (RNase) is
known to promote angiogenesis and lactoferrin (LF) to stimulate bone formation by osteoblasts. We examine the effect of
ribonuclease-enriched lactoferrin supplement on the bone health of postmenopausal women.
METHODS: A total of 38 healthy, postmenopausal women, aged 45 to 60 years were randomized into placebo or
RNAse-enriched-LF (R-ELF) supplement groups. The bone health status was monitored by assessing bone resorption markers,
serum N-telopeptides (NTx), and urine deoxypyridinoline (Dpd) crosslinks and serum bone formation markers, bone-specific
alkaline phosphatase (BAP), and osteocalcin (OC).
RESULTS: R-ELF supplementation demonstrated a decrease in urine Dpd levels by 14% (19% increase for placebo) and
serum NTx maintained at 24% of the baseline (41% for placebo), while serum BAP and OC levels showed a 45% and 16%
elevation (25% and 5% for placebo).
CONCLUSIONS: R-ELF supplementation demonstrated a statistically significant reduction in bone resorption and increase in
osteoblastic bone formation, to restore the balance of bone turnover within a short period.