Research Article

Peri-Implant Crestal Bone Loss: A Putative Mechanism

Table 3

ELISA results for hMO (a), hBMCs (b) and hGFs (c). For hMO, protein levels were assessed from the cell-free culture supernatants. hBMC and hGF protein levels were quantified from the cell lysate.
(a) Secretion of IL-1α and IL-1β by human macrophages after LPS stimulation


IL-1αIL-1β
Stimulation periodLPS 0LPS 1 μg/mLLPS 0LPS 1 μg/mL

24 hrs0 pg/mL470.80 ± 79.69 pg/mL32 pg/mL400 pg/mL

(b) Secretion of IL-1α, IL-1β, and TNF-by human bone marrow cells after LPS stimulation


IL-1α (pg/mL)IL-1β (pg/mL)TNF-α (pg/mL)
LPS (μg/mL)LPS (μg/mL)LPS (μg/mL)
Stimulation period  00.1100.1100.11

24 hrs  05.49 ± 1.215.11 ± 2.0309.17 ± 4.5716.15 ± 1.7819.32 ± 10.0352.95 ± 5.2654.55 ± 3.25
48 hrs  00.34 ± 0.4600015.59 ± 1.0522.27 ± 2.1251.48 ± 2.3340.00 ± 4.82
96 hrs  00000014.89 ± 2.4442.39 ± 8.8540.11 ± 11.06

(c) Secretion of IL-1α, IL-1β, and TNF-by human gingival fibroblasts after LPS stimulation


IL-1α (pg/mL)IL-1β (pg/mL)TNF-α (pg/mL)
LPS (μg/mL)LPS (μg/mL)LPS (μg/mL)
Stimulation period00.1100.1100.11

24 hrs00000023.30 ± 3.7228.30 ± 1.1426.93 ± 2.18
48 hrs00000022.27 ± 2.0517.84 ± 8.1721.36 ± 3.20
96 hrs00000020.00 ± 4.1619.31 ± 6.8922.84 ± 1.76