Component

Strontium ranelate

Context-specific entity; species, compartment and exposure are stated on each claim.

22 recorded relationships. Experimental role, claim status and evidence remain attached to each record.

Read recorded mechanisms Open recursive mind map

How nutrients influence it

Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.

How nutrients reach it in more than one step

Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.

Tracing routes…

What it does

Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.

Recorded relationships

What it acts on

  1. Across 34 iliac biopsies after 2–60 months of ranelate treatment, secondary mineralization remained at a normal level while the bone area containing strontium increased.

    Strontium ranelate → Degree of mineralization in human ranelate-treatment biopsies source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Human iliac-bone microradiography and microanalysis.
    limitations
    Related clinical research program; not independent randomized proof of every cellular mechanism or absence of all adverse effects.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    A human biopsy series did not reproduce generalized mineralization failure.
    primary_references
    Distribution of strontium and mineralization in iliac bone biopsies from osteoporotic women treated long-term with strontium ranelate. · 2011 · https://pubmed.ncbi.nlm.nih.gov/21690207/ · DOI 10.1530/EJE-11-0415

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 302–308

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Human iliac-bone microradiography and microanalysis. · source_derived_draft · unverified_draft

    ## strontium-biopsy-mineralization A human biopsy series did not reproduce generalized mineralization failure. Across 34 iliac biopsies after 2–60 months of ranelate treatment, secondary mineralization remained at a normal level while the bone area containing strontium increased. Model: Human iliac-bone microradiography and microanalysis. Limitations: Related clinical research program; not independent randomized proof of every cellular mechanism or absence of all adverse effects. Evidence access: Primary abstract Distribution of strontium and mineralization in iliac bone biopsies from osteoporotic women treated long-term with strontium ranelate. · 2011 · https://pubmed.ncbi.nlm.nih.gov/21690207/ · DOI 10.1530/EJE-11-0415
    Complete structured claim and evidence

  2. Biopsies from ranelate-treated osteoporotic women localized strontium mainly to bone structural units formed during treatment, with old units reported devoid of strontium in the analyzed samples.

    Strontium ranelate → Strontium deposition in newly formed human bone source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Human treatment biopsies; X-ray microanalysis and cartography, up to three years for these analyses.
    limitations
    Sampled iliac bone does not define uptake or release kinetics for the entire skeleton.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Bone turnover determines where the element is incorporated.
    primary_references
    In osteoporotic women treated with strontium ranelate, strontium is located in bone formed during treatment with a maintained degree of mineralization. · 2010 · https://pubmed.ncbi.nlm.nih.gov/19597910/ · DOI 10.1007/s00198-009-1005-z

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 294–300

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Human treatment biopsies; X-ray microanalysis and cartography, up to three years for these analyses. · source_derived_draft · unverified_draft

    ## strontium-bone-localization Bone turnover determines where the element is incorporated. Biopsies from ranelate-treated osteoporotic women localized strontium mainly to bone structural units formed during treatment, with old units reported devoid of strontium in the analyzed samples. Model: Human treatment biopsies; X-ray microanalysis and cartography, up to three years for these analyses. Limitations: Sampled iliac bone does not define uptake or release kinetics for the entire skeleton. Evidence access: Primary abstract In osteoporotic women treated with strontium ranelate, strontium is located in bone formed during treatment with a maintained degree of mineralization. · 2010 · https://pubmed.ncbi.nlm.nih.gov/19597910/ · DOI 10.1007/s00198-009-1005-z
    Complete structured claim and evidence

  3. Cardiovascular-death odds were higher for current ranelate versus current bisphosphonate use, OR 1.35 (1.02–1.80), but lower for current versus past ranelate use, OR 0.68 (0.48–0.96).

    Strontium ranelate → Cardiovascular death in ranelate observational cohorts source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Same healthcare-database study.
    limitations
    Authors discuss treatment cessation near end of life and residual confounding; this is not a demonstrated biological reversal or a draft conflict.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Changing the comparison changed the association.
    primary_references
    Comparative cardiovascular safety of strontium ranelate and bisphosphonates: a multi-database study in 5 EU countries by the EU-ADR Alliance. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32757044/ · DOI 10.1007/s00198-020-05580-0

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 454–460

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Same healthcare-database study. · source_derived_draft · unverified_draft

    ## strontium-cardiovascular-death Changing the comparison changed the association. Cardiovascular-death odds were higher for current ranelate versus current bisphosphonate use, OR 1.35 (1.02–1.80), but lower for current versus past ranelate use, OR 0.68 (0.48–0.96). Model: Same healthcare-database study. Limitations: Authors discuss treatment cessation near end of life and residual confounding; this is not a demonstrated biological reversal or a draft conflict. Evidence access: Primary abstract Comparative cardiovascular safety of strontium ranelate and bisphosphonates: a multi-database study in 5 EU countries by the EU-ADR Alliance. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32757044/ · DOI 10.1007/s00198-020-05580-0
    Complete structured claim and evidence

  4. In a five-country study restricted to patients without ranelate contraindications, current ranelate versus current bisphosphonate use had an acute-MI odds ratio of 0.89, 95% CI 0.70–1.12.

    Strontium ranelate → Acute myocardial infarction in ranelate observational cohorts source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Nested case-control studies in healthcare databases.
    limitations
    Selected eligible patients and residual confounding; not proof of cardiovascular safety or a vascular mechanism.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    This observational comparison did not detect excess myocardial infarction.
    primary_references
    Comparative cardiovascular safety of strontium ranelate and bisphosphonates: a multi-database study in 5 EU countries by the EU-ADR Alliance. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32757044/ · DOI 10.1007/s00198-020-05580-0

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 438–444

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Nested case-control studies in healthcare databases. · source_derived_draft · unverified_draft

    ## strontium-cardiovascular-null-ami This observational comparison did not detect excess myocardial infarction. In a five-country study restricted to patients without ranelate contraindications, current ranelate versus current bisphosphonate use had an acute-MI odds ratio of 0.89, 95% CI 0.70–1.12. Model: Nested case-control studies in healthcare databases. Limitations: Selected eligible patients and residual confounding; not proof of cardiovascular safety or a vascular mechanism. Evidence access: Primary abstract Comparative cardiovascular safety of strontium ranelate and bisphosphonates: a multi-database study in 5 EU countries by the EU-ADR Alliance. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32757044/ · DOI 10.1007/s00198-020-05580-0
    Complete structured claim and evidence

  5. Strontium ranelate induced an osteocyte-like phenotype, increased DMP1 and sclerostin mRNA and markedly increased mineralization at reported concentrations of 5 mM or greater.

    Strontium ranelate → Osteocyte-like phenotype in strontium-treated human cultures source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Long-term adult human primary osteoblast cultures.
    limitations
    High culture concentration; SOST transcript increase is not a direct contradiction of a different study measuring sclerostin protein.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Cell maturity and exposure can change which markers rise.
    primary_references
    Strontium ranelate treatment of human primary osteoblasts promotes an osteocyte-like phenotype while eliciting an osteoprotegerin response. · 2009 · https://pubmed.ncbi.nlm.nih.gov/18763010/ · DOI 10.1007/s00198-008-0728-6

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 206–212

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Long-term adult human primary osteoblast cultures. · source_derived_draft · unverified_draft

    ## strontium-human-maturation Cell maturity and exposure can change which markers rise. Strontium ranelate induced an osteocyte-like phenotype, increased DMP1 and sclerostin mRNA and markedly increased mineralization at reported concentrations of 5 mM or greater. Model: Long-term adult human primary osteoblast cultures. Limitations: High culture concentration; SOST transcript increase is not a direct contradiction of a different study measuring sclerostin protein. Evidence access: Primary abstract Strontium ranelate treatment of human primary osteoblasts promotes an osteocyte-like phenotype while eliciting an osteoprotegerin response. · 2009 · https://pubmed.ncbi.nlm.nih.gov/18763010/ · DOI 10.1007/s00198-008-0728-6
    Complete structured claim and evidence

  6. In long-term adult human primary osteoblast cultures, strontium ranelate increased the OPG/RANKL ratio and an OPG secretory response.

    Strontium ranelate → Osteoprotegerin / TNFRSF11B / OPG source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Human culture, OPG ELISA and gene-expression assays.
    limitations
    Ratio change is not itself a direct measurement of osteoclast resorption.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Bone-forming cells can change the signals reaching bone-resorbing cells.
    primary_references
    Strontium ranelate treatment of human primary osteoblasts promotes an osteocyte-like phenotype while eliciting an osteoprotegerin response. · 2009 · https://pubmed.ncbi.nlm.nih.gov/18763010/ · DOI 10.1007/s00198-008-0728-6

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 198–204

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Human culture, OPG ELISA and gene-expression assays. · source_derived_draft · unverified_draft

    ## strontium-human-opg Bone-forming cells can change the signals reaching bone-resorbing cells. In long-term adult human primary osteoblast cultures, strontium ranelate increased the OPG/RANKL ratio and an OPG secretory response. Model: Human culture, OPG ELISA and gene-expression assays. Limitations: Ratio change is not itself a direct measurement of osteoclast resorption. Evidence access: Primary abstract Strontium ranelate treatment of human primary osteoblasts promotes an osteocyte-like phenotype while eliciting an osteoprotegerin response. · 2009 · https://pubmed.ncbi.nlm.nih.gov/18763010/ · DOI 10.1007/s00198-008-0728-6
    Complete structured claim and evidence

  7. Strontium ranelate disrupted the actin-containing sealing zone of mouse osteoclasts and reduced resorbing activity.

    Strontium ranelate → Actin-containing sealing zone in mouse osteoclasts source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Primary murine spleen-derived osteoclast culture.
    limitations
    Distinct from merely reducing osteoclast numbers; experimental concentration limits apply.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Changing the attachment structure can impair bone resorption.
    primary_references
    Dual effect of strontium ranelate: stimulation of osteoblast differentiation and inhibition of osteoclast formation and resorption in vitro. · 2008 · https://pubmed.ncbi.nlm.nih.gov/17945546/ · DOI 10.1016/j.bone.2007.08.043

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 246–252

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Primary murine spleen-derived osteoclast culture. · source_derived_draft · unverified_draft

    ## strontium-mouse-sealing-zone Changing the attachment structure can impair bone resorption. Strontium ranelate disrupted the actin-containing sealing zone of mouse osteoclasts and reduced resorbing activity. Model: Primary murine spleen-derived osteoclast culture. Limitations: Distinct from merely reducing osteoclast numbers; experimental concentration limits apply. Evidence access: Primary abstract Dual effect of strontium ranelate: stimulation of osteoblast differentiation and inhibition of osteoclast formation and resorption in vitro. · 2008 · https://pubmed.ncbi.nlm.nih.gov/17945546/ · DOI 10.1016/j.bone.2007.08.043
    Complete structured claim and evidence

  8. The strontium-ranelate study found NFATc1 nuclear translocation and increased transcriptional activity in murine MC3T3-E1 and primary osteoblasts.

    Strontium ranelate → Mouse NFATc1 source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Murine osteoblast nuclear-localization and reporter assays.
    limitations
    Cell-culture preparation and model; not direct human target engagement.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    A calcium-responsive transcription factor connects exposure to gene regulation.
    primary_references
    Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 118–124

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Murine osteoblast nuclear-localization and reporter assays. · source_derived_draft · unverified_draft

    ## strontium-nfat-activation A calcium-responsive transcription factor connects exposure to gene regulation. The strontium-ranelate study found NFATc1 nuclear translocation and increased transcriptional activity in murine MC3T3-E1 and primary osteoblasts. Model: Murine osteoblast nuclear-localization and reporter assays. Limitations: Cell-culture preparation and model; not direct human target engagement. Evidence access: Primary abstract Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    Complete structured claim and evidence

  9. Continuous strontium ranelate at 0.01, 0.1 and 1 mM caused 59%, 98% and 100% inhibition of mineralization in 14-day rat calvarial osteoblast cultures; strontium chloride also strongly inhibited it.

    Strontium ranelate → Mineralization in strontium-treated rat calvarial osteoblast cultures source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary full text
    experimental_model
    Primary rat osteoblast cultures; quantified mineralized nodules.
    limitations
    Full-text results clarify these numbers are percent inhibition, despite ambiguous abstract wording. Species, culture conditions and soluble exposure require matched comparison.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    This study found less mineral deposition, directly challenging a general stimulatory claim.
    primary_references
    Strontium potently inhibits mineralisation in bone-forming primary rat osteoblast cultures and reduces numbers of osteoclasts in mouse marrow cultures. · 2014 · https://pubmed.ncbi.nlm.nih.gov/25048011/ · DOI 10.1007/s00198-014-2791-5

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 270–276

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Primary rat osteoblast cultures; quantified mineralized nodules. · source_derived_draft · unverified_draft

    ## strontium-rat-mineralization-negative This study found less mineral deposition, directly challenging a general stimulatory claim. Continuous strontium ranelate at 0.01, 0.1 and 1 mM caused 59%, 98% and 100% inhibition of mineralization in 14-day rat calvarial osteoblast cultures; strontium chloride also strongly inhibited it. Model: Primary rat osteoblast cultures; quantified mineralized nodules. Limitations: Full-text results clarify these numbers are percent inhibition, despite ambiguous abstract wording. Species, culture conditions and soluble exposure require matched comparison. Evidence access: Primary full text Strontium potently inhibits mineralisation in bone-forming primary rat osteoblast cultures and reduces numbers of osteoclasts in mouse marrow cultures. · 2014 · https://pubmed.ncbi.nlm.nih.gov/25048011/ · DOI 10.1007/s00198-014-2791-5
    Complete structured claim and evidence

  10. SOTI reported BMD increases of 14.4% at the lumbar spine and 8.3% at the femoral neck by month 36.

    Strontium ranelate → DXA BMD in the SOTI trial source_derived_draftungraded
    Experimental context and source evidence
    availability_state
    biomarker_context Imported condition classification; unverified.
    evidence_access
    Primary abstract
    experimental_model
    Same randomized trial; repeated densitometry.
    limitations
    Do not equate the full BMD increase with new calcium bone mass; independent strontium attenuation studies establish measurement inflation.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    The reported scan changes include a composition-sensitive measurement.
    primary_references
    The effects of strontium ranelate on the risk of vertebral fracture in women with postmenopausal osteoporosis. · 2004 · https://pubmed.ncbi.nlm.nih.gov/14749454/ · DOI 10.1056/NEJMoa022436
    trigger_kind
    biomarker_context Imported condition classification; unverified.

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 430–436

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Same randomized trial; repeated densitometry. · source_derived_draft · unverified_draft

    ## strontium-soti-bmd The reported scan changes include a composition-sensitive measurement. SOTI reported BMD increases of 14.4% at the lumbar spine and 8.3% at the femoral neck by month 36. Model: Same randomized trial; repeated densitometry. Limitations: Do not equate the full BMD increase with new calcium bone mass; independent strontium attenuation studies establish measurement inflation. Evidence access: Primary abstract The effects of strontium ranelate on the risk of vertebral fracture in women with postmenopausal osteoporosis. · 2004 · https://pubmed.ncbi.nlm.nih.gov/14749454/ · DOI 10.1056/NEJMoa022436
    Complete structured claim and evidence

  11. In 1,649 postmenopausal women with osteoporosis and a prior vertebral fracture, 2 g/day ranelate reduced new vertebral-fracture risk over three years: relative risk 0.59, 95% CI 0.48–0.73.

    Strontium ranelate → New vertebral fractures in the SOTI trial source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Randomized placebo-controlled SOTI trial; both groups received calcium and vitamin D.
    limitations
    Specific drug, population and co-treatment; no equivalent efficacy established for dietary strontium or strontium citrate. Trial mechanisms are not identified by the fracture endpoint.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    A clinical trial measured fewer fractures, separately from density scans.
    primary_references
    The effects of strontium ranelate on the risk of vertebral fracture in women with postmenopausal osteoporosis. · 2004 · https://pubmed.ncbi.nlm.nih.gov/14749454/ · DOI 10.1056/NEJMoa022436

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 422–428

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Randomized placebo-controlled SOTI trial; both groups received calcium and vitamin D. · source_derived_draft · unverified_draft

    ## strontium-soti-fractures A clinical trial measured fewer fractures, separately from density scans. In 1,649 postmenopausal women with osteoporosis and a prior vertebral fracture, 2 g/day ranelate reduced new vertebral-fracture risk over three years: relative risk 0.59, 95% CI 0.48–0.73. Model: Randomized placebo-controlled SOTI trial; both groups received calcium and vitamin D. Limitations: Specific drug, population and co-treatment; no equivalent efficacy established for dietary strontium or strontium citrate. Trial mechanisms are not identified by the fracture endpoint. Evidence access: Primary abstract The effects of strontium ranelate on the risk of vertebral fracture in women with postmenopausal osteoporosis. · 2004 · https://pubmed.ncbi.nlm.nih.gov/14749454/ · DOI 10.1056/NEJMoa022436
    Complete structured claim and evidence

  12. VTE odds ratios were 1.24 (95% CI 0.96–1.61) for current ranelate versus current bisphosphonate use and 1.30 (1.04–1.62) for current versus past ranelate use.

    Strontium ranelate → Venous thromboembolism in ranelate observational cohorts source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Same multinational observational database study.
    limitations
    Association does not establish a coagulation mechanism; do not transfer numerical risks to all salts or doses.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    The VTE signal depended partly on the comparator, and one interval included no increase.
    primary_references
    Comparative cardiovascular safety of strontium ranelate and bisphosphonates: a multi-database study in 5 EU countries by the EU-ADR Alliance. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32757044/ · DOI 10.1007/s00198-020-05580-0

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 446–452

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Same multinational observational database study. · source_derived_draft · unverified_draft

    ## strontium-thromboembolism-signal The VTE signal depended partly on the comparator, and one interval included no increase. VTE odds ratios were 1.24 (95% CI 0.96–1.61) for current ranelate versus current bisphosphonate use and 1.30 (1.04–1.62) for current versus past ranelate use. Model: Same multinational observational database study. Limitations: Association does not establish a coagulation mechanism; do not transfer numerical risks to all salts or doses. Evidence access: Primary abstract Comparative cardiovascular safety of strontium ranelate and bisphosphonates: a multi-database study in 5 EU countries by the EU-ADR Alliance. · 2020 · https://pubmed.ncbi.nlm.nih.gov/32757044/ · DOI 10.1007/s00198-020-05580-0
    Complete structured claim and evidence

  13. Strontium ranelate increased WNT3A expression in the murine osteoblast study; calcineurin inhibitors abolished the increase.

    Strontium ranelate → Mouse Wnt3a source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Murine osteoblast gene-expression experiments.
    limitations
    Expression is not equivalent to ligand delivery in human bone.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    One signaling response changes the production of another signaling protein.
    primary_references
    Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 134–140

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Murine osteoblast gene-expression experiments. · source_derived_draft · unverified_draft

    ## strontium-wnt3a-expression One signaling response changes the production of another signaling protein. Strontium ranelate increased WNT3A expression in the murine osteoblast study; calcineurin inhibitors abolished the increase. Model: Murine osteoblast gene-expression experiments. Limitations: Expression is not equivalent to ligand delivery in human bone. Evidence access: Primary abstract Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    Complete structured claim and evidence

  14. Strontium ranelate increased WNT5A expression in the murine osteoblast study; calcineurin inhibitors abolished the increase.

    Strontium ranelate → Mouse Wnt5a source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Murine osteoblast gene-expression experiments.
    limitations
    Expression is not equivalent to ligand delivery in human bone.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    One signaling response changes the production of another signaling protein.
    primary_references
    Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 142–148

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Murine osteoblast gene-expression experiments. · source_derived_draft · unverified_draft

    ## strontium-wnt5a-expression One signaling response changes the production of another signaling protein. Strontium ranelate increased WNT5A expression in the murine osteoblast study; calcineurin inhibitors abolished the increase. Model: Murine osteoblast gene-expression experiments. Limitations: Expression is not equivalent to ligand delivery in human bone. Evidence access: Primary abstract Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    Complete structured claim and evidence

Where it participates (unsigned role)

  1. Cyclosporin A or FK506 blocked ranelate-associated NFATc1 activation and blunted osteoblast replication and phenotypic gene expression.

    Mouse calcineurin phosphatase complex → Mouse NFATc1 source_derived_draftungraded
    Experimental context and source evidence
    availability_state
    machinery_impairment Imported condition classification; unverified.
    evidence_access
    Primary abstract
    experimental_model
    Murine osteoblast inhibitor experiments.
    limitations
    These inhibitors have broader biological effects; not a clinical interaction estimate.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    perturbation_agent
    inhibits · Cyclosporine A / ciclosporin A Cyclosporin A or FK506 blocked ranelate-associated NFATc1 activation; the experiment used cyclosporin A as the calcineurin blocker. FK506 is the second agent and is not a ledger entity yet.
    plain_language
    Blocking the activating phosphatase interrupts the downstream response.
    primary_references
    Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    trigger_kind
    machinery_impairment Imported condition classification; unverified.

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 126–132

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Murine osteoblast inhibitor experiments. · source_derived_draft · unverified_draft

    ## strontium-calcineurin-block Blocking the activating phosphatase interrupts the downstream response. Cyclosporin A or FK506 blocked ranelate-associated NFATc1 activation and blunted osteoblast replication and phenotypic gene expression. Model: Murine osteoblast inhibitor experiments. Limitations: These inhibitors have broader biological effects; not a clinical interaction estimate. Evidence access: Primary abstract Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    Complete structured claim and evidence

  2. Strontium chloride and the ranelate preparation stimulated ERK phosphorylation in HEK293 cells transfected with human CaSR.

    Strontium ion / Sr2+ → Calcium-sensing receptor / CaSR source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Human receptor transfection and dose-response signaling assays.
    limitations
    Receptor signaling is not itself proof of stronger bone or a nutritional requirement.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Strontium can engage a receptor normally used to sense extracellular calcium.
    primary_references
    The Calcium-sensing Receptor (CaR) is involved in strontium ranelate-induced osteoblast differentiation and mineralization. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20560105/ · DOI 10.1055/s-0030-1255091

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 70–76

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Human receptor transfection and dose-response signaling assays. · source_derived_draft · unverified_draft

    ## strontium-human-casr Strontium can engage a receptor normally used to sense extracellular calcium. Strontium chloride and the ranelate preparation stimulated ERK phosphorylation in HEK293 cells transfected with human CaSR. Model: Human receptor transfection and dose-response signaling assays. Limitations: Receptor signaling is not itself proof of stronger bone or a nutritional requirement. Evidence access: Primary abstract The Calcium-sensing Receptor (CaR) is involved in strontium ranelate-induced osteoblast differentiation and mineralization. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20560105/ · DOI 10.1055/s-0030-1255091
    Complete structured claim and evidence

  3. Pretreatment with NPS2390 largely antagonized ranelate-associated proliferation and mineralization in mouse MC3T3-E1 cells.

    Mouse calcium-sensing receptor / Casr → Strontium-associated MC3T3-E1 proliferation and mineralization source_derived_draftungraded
    Experimental context and source evidence
    availability_state
    machinery_impairment Imported condition classification; unverified.
    evidence_access
    Primary abstract
    experimental_model
    Mouse osteoblast-line pharmacological experiment.
    limitations
    NPS2390 is not a receptor-specific genetic deletion; later knockout experiments retain some responses.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    A receptor inhibitor reduced the response in this culture model.
    primary_references
    The Calcium-sensing Receptor (CaR) is involved in strontium ranelate-induced osteoblast differentiation and mineralization. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20560105/ · DOI 10.1055/s-0030-1255091
    trigger_kind
    machinery_impairment Imported condition classification; unverified.

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 78–84

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Mouse osteoblast-line pharmacological experiment. · source_derived_draft · unverified_draft

    ## strontium-mouse-casr-block A receptor inhibitor reduced the response in this culture model. Pretreatment with NPS2390 largely antagonized ranelate-associated proliferation and mineralization in mouse MC3T3-E1 cells. Model: Mouse osteoblast-line pharmacological experiment. Limitations: NPS2390 is not a receptor-specific genetic deletion; later knockout experiments retain some responses. Evidence access: Primary abstract The Calcium-sensing Receptor (CaR) is involved in strontium ranelate-induced osteoblast differentiation and mineralization. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20560105/ · DOI 10.1055/s-0030-1255091
    Complete structured claim and evidence

  4. Strontium salts reduced osteoclast formation and total resorption pits in mouse marrow cultures; the study attributed much of the lower total resorption to fewer osteoclasts.

    Strontium ion / Sr2+ → Osteoclast numbers in strontium-treated mouse marrow culture source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary full text
    experimental_model
    Eight-day mouse marrow cultures on dentine with M-CSF and RANKL.
    limitations
    Different assay from the murine sealing-zone study; total versus per-cell measures should not be collapsed.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Total resorption can fall because there are fewer cells, not necessarily because each cell works less.
    primary_references
    Strontium potently inhibits mineralisation in bone-forming primary rat osteoblast cultures and reduces numbers of osteoclasts in mouse marrow cultures. · 2014 · https://pubmed.ncbi.nlm.nih.gov/25048011/ · DOI 10.1007/s00198-014-2791-5

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 286–292

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Eight-day mouse marrow cultures on dentine with M-CSF and RANKL. · source_derived_draft · unverified_draft

    ## strontium-osteoclast-number-versus-function Total resorption can fall because there are fewer cells, not necessarily because each cell works less. Strontium salts reduced osteoclast formation and total resorption pits in mouse marrow cultures; the study attributed much of the lower total resorption to fewer osteoclasts. Model: Eight-day mouse marrow cultures on dentine with M-CSF and RANKL. Limitations: Different assay from the murine sealing-zone study; total versus per-cell measures should not be collapsed. Evidence access: Primary full text Strontium potently inhibits mineralisation in bone-forming primary rat osteoblast cultures and reduces numbers of osteoclasts in mouse marrow cultures. · 2014 · https://pubmed.ncbi.nlm.nih.gov/25048011/ · DOI 10.1007/s00198-014-2791-5
    Complete structured claim and evidence

  5. Knocking down RHOA abrogated strontium-ranelate-induced cell proliferation and osteoblast gene expression in the murine study.

    Mouse RhoA → Strontium-associated osteoblast gene expression in mouse cells source_derived_draftungraded
    Experimental context and source evidence
    availability_state
    machinery_impairment Imported condition classification; unverified.
    evidence_access
    Primary abstract
    experimental_model
    Murine osteoblast knockdown experiments.
    limitations
    This establishes experimental dependency, not human dietary deficiency.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    A noncanonical Wnt component is another required step in this model.
    primary_references
    Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    trigger_kind
    machinery_impairment Imported condition classification; unverified.

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 166–172

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Murine osteoblast knockdown experiments. · source_derived_draft · unverified_draft

    ## strontium-rhoa-loss A noncanonical Wnt component is another required step in this model. Knocking down RHOA abrogated strontium-ranelate-induced cell proliferation and osteoblast gene expression in the murine study. Model: Murine osteoblast knockdown experiments. Limitations: This establishes experimental dependency, not human dietary deficiency. Evidence access: Primary abstract Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    Complete structured claim and evidence

  6. Knocking down RYK abrogated strontium-ranelate-induced cell proliferation and osteoblast gene expression in the murine study.

    Mouse Ryk → Strontium-associated osteoblast gene expression in mouse cells source_derived_draftungraded
    Experimental context and source evidence
    availability_state
    machinery_impairment Imported condition classification; unverified.
    evidence_access
    Primary abstract
    experimental_model
    Murine osteoblast knockdown experiments.
    limitations
    This establishes experimental dependency, not human dietary deficiency.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    A noncanonical Wnt component is another required step in this model.
    primary_references
    Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    trigger_kind
    machinery_impairment Imported condition classification; unverified.

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 158–164

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Murine osteoblast knockdown experiments. · source_derived_draft · unverified_draft

    ## strontium-ryk-loss A noncanonical Wnt component is another required step in this model. Knocking down RYK abrogated strontium-ranelate-induced cell proliferation and osteoblast gene expression in the murine study. Model: Murine osteoblast knockdown experiments. Limitations: This establishes experimental dependency, not human dietary deficiency. Evidence access: Primary abstract Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    Complete structured claim and evidence

  7. Correcting vitamin D deficiency with vitamin D3 did not increase the measured strontium-ranelate absorption in the study of postmenopausal women with low bone mass.

    Cholecalciferol → Human intestinal strontium absorption source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    25 women below 50 nmol/L 25(OH)D and 25 above 75 nmol/L; deficient group retested after repletion.
    limitations
    Mild deficiency, oral overload test and D3 intervention differ from the four-patient calcitriol experiment; not a scientific contradiction or evidence against treating vitamin D deficiency.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Improving vitamin D status did not automatically improve strontium absorption.
    primary_references
    Vitamin D supplementation and strontium ranelate absorption in postmenopausal women with low bone mass. · 2014 · https://pubmed.ncbi.nlm.nih.gov/24394724/ · DOI 10.1530/EJE-13-0899

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 62–68

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · 25 women below 50 nmol/L 25(OH)D and 25 above 75 nmol/L; deficient group retested after repletion. · source_derived_draft · unverified_draft

    ## strontium-vitamin-d3-null Improving vitamin D status did not automatically improve strontium absorption. Correcting vitamin D deficiency with vitamin D3 did not increase the measured strontium-ranelate absorption in the study of postmenopausal women with low bone mass. Model: 25 women below 50 nmol/L 25(OH)D and 25 above 75 nmol/L; deficient group retested after repletion. Limitations: Mild deficiency, oral overload test and D3 intervention differ from the four-patient calcitriol experiment; not a scientific contradiction or evidence against treating vitamin D deficiency. Evidence access: Primary abstract Vitamin D supplementation and strontium ranelate absorption in postmenopausal women with low bone mass. · 2014 · https://pubmed.ncbi.nlm.nih.gov/24394724/ · DOI 10.1530/EJE-13-0899
    Complete structured claim and evidence

  8. The Wnt antagonists sFRP1 and DKK1 abolished ranelate-induced osteoblast gene expression in the murine cultures.

    sFRP1/DKK1 Wnt-antagonist experiments in mouse osteoblasts → Strontium-associated osteoblast gene expression in mouse cells source_derived_draftungraded
    Experimental context and source evidence
    availability_state
    machinery_impairment Imported condition classification; unverified.
    evidence_access
    Primary abstract
    experimental_model
    Murine osteoblast Wnt-inhibition experiments.
    limitations
    The assay does not establish the same degree of dependence for all Wnt ligands or human tissues.
    nutrient_topic
    Strontium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Strontium
    plain_language
    Interrupting Wnt signaling removed the gene response.
    primary_references
    Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    trigger_kind
    machinery_impairment Imported condition classification; unverified.

    Strontium: calcium interactions, cellular mechanisms and mineralization (2026-09-19) · lines 150–156

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Murine osteoblast Wnt-inhibition experiments. · source_derived_draft · unverified_draft

    ## strontium-wnt-antagonists Interrupting Wnt signaling removed the gene response. The Wnt antagonists sFRP1 and DKK1 abolished ranelate-induced osteoblast gene expression in the murine cultures. Model: Murine osteoblast Wnt-inhibition experiments. Limitations: The assay does not establish the same degree of dependence for all Wnt ligands or human tissues. Evidence access: Primary abstract Essential role of nuclear factor of activated T cells (NFAT)-mediated Wnt signaling in osteoblast differentiation induced by strontium ranelate. · 2010 · https://pubmed.ncbi.nlm.nih.gov/20554534/ · DOI 10.1074/jbc.M110.110502
    Complete structured claim and evidence

In the sources

Preserved passages that mention this component, quoted exactly. Open one to read it in context.

    This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.

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