Component
Osteoblast apoptosis
Independent biological entity. Read linked claims for experimental scope and context.
2 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
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.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
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.
What acts on it
Daily PTH(1-34) injections reduced osteoblast apoptosis and increased bone formation in the studied adult mouse strains.
Experimental context and source evidence
- experimental_model
- Daily PTH(1-34) administration and cell assays
- limitations
- An experimental dosing context; it must not be generalized to sustained endogenous PTH elevation or calcium supplementation.
- nutrient_topic
- Calcium research collection; topical membership is not evidence of a direct dietary effect. · Calcium
- organism
- Mus musculus; rodent and human cell corroboration
- plain_language
- Intermittent PTH exposure can prolong the survival of bone-forming cells.
- primary_references
- [jilka1999] Increased bone formation by prevention of osteoblast apoptosis with parathyroid hormone (1999). https://www.jci.org/articles/view/6610 DOI: 10.1172/JCI6610
- tissue_or_cell_type
- Cancellous bone osteoblasts
Calcium: mechanism-first literature curation (2026-09-17) · lines 1093–1102
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Daily PTH(1-34) administration and cell assays · source_derived_draft · unverified_draft
### intermittent-pth-reduces-osteoblast-apoptosis Daily PTH(1-34) injections reduced osteoblast apoptosis and increased bone formation in the studied adult mouse strains. Condition category: normal nutrient_topic: Calcium research collection; topical membership is not evidence of a direct dietary effect. plain_language: Intermittent PTH exposure can prolong the survival of bone-forming cells. organism: Mus musculus; rodent and human cell corroboration tissue_or_cell_type: Cancellous bone osteoblasts experimental_model: Daily PTH(1-34) administration and cell assays limitations: An experimental dosing context; it must not be generalized to sustained endogenous PTH elevation or calcium supplementation. [jilka1999] Increased bone formation by prevention of osteoblast apoptosis with parathyroid hormone (1999). https://www.jci.org/articles/view/6610 DOI: 10.1172/JCI6610
Complete structured claim and evidencePretreatment reduced apoptosis during t-BHP challenge.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/nasunin-research/bone2016.publisher-abstract.txt", "locator": "Primary publisher abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "83d6dc95bb4cccd5028a3908a5a44639274f59f18e1cea4b13f6133b9fe726dc", "start_char": 0, "end_char": 1187, "text_sha256": "83d6dc95bb4cccd5028a3908a5a44639274f59f18e1cea4b13f6133b9fe726dc"}
- experimental_model
- Oxidant-challenged osteoblast-like cells with pharmacological pathway inhibition
- exposure
- Purified trans-nasunin pretreatment 0.1 nM-1 micromolar; t-BHP 250 micromolar for 3 h; redox/function experiments at 1 nM
- limitations
- Cell-line protection does not establish bone-density or fracture benefits in humans. PI3K inhibition supports pathway involvement, not direct nasunin binding.
- nutrient_topic
- Nasunin research collection; topical membership is not evidence of a direct dietary effect. · Nasunin
- organism
- Mouse MC3T3-E1 cells
- plain_language
- Fewer cells entered the measured death pathway.
- primary_references
- [nasunin-pbone2016] Nasunin, a new player in the field of osteoblast protection against oxidative stress (2016). https://air.unimi.it/handle/2434/378237 DOI: 10.1016/j.jff.2016.03.007
- tissue_or_cell_type
- Survival, differentiation markers, redox state and Akt signaling
Nasunin: identity, redox chemistry and nutrient connections (2026-09-17) · lines 315–326
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Oxidant-challenged osteoblast-like cells with pharmacological pathway inhibition · source_derived_draft · unverified_draft
### nasunin-bone-apoptosis Pretreatment reduced apoptosis during t-BHP challenge. Condition category: normal nutrient_topic: Nasunin research collection; topical membership is not evidence of a direct dietary effect. plain_language: Fewer cells entered the measured death pathway. organism: Mouse MC3T3-E1 cells tissue_or_cell_type: Survival, differentiation markers, redox state and Akt signaling experimental_model: Oxidant-challenged osteoblast-like cells with pharmacological pathway inhibition limitations: Cell-line protection does not establish bone-density or fracture benefits in humans. PI3K inhibition supports pathway involvement, not direct nasunin binding. exposure: Purified trans-nasunin pretreatment 0.1 nM-1 micromolar; t-BHP 250 micromolar for 3 h; redox/function experiments at 1 nM evidence_span: {"source_cache": "artifacts/nasunin-research/bone2016.publisher-abstract.txt", "locator": "Primary publisher abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "83d6dc95bb4cccd5028a3908a5a44639274f59f18e1cea4b13f6133b9fe726dc", "start_char": 0, "end_char": 1187, "text_sha256": "83d6dc95bb4cccd5028a3908a5a44639274f59f18e1cea4b13f6133b9fe726dc"} [nasunin-pbone2016] Nasunin, a new player in the field of osteoblast protection against oxidative stress (2016). https://air.unimi.it/handle/2434/378237 DOI: 10.1016/j.jff.2016.03.007
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.