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Povidone-Iodine Has a Profound Effect on In Vitro Osteoblast Proliferation and Metabolic Function and Inhibits Their Ability to Mineralize and Form Bone.
- Source :
-
Spine [Spine (Phila Pa 1976)] 2016 May; Vol. 41 (9), pp. 729-34. - Publication Year :
- 2016
-
Abstract
- Study Design: A study examining the clinical protocol of scoliosis wound irrigation, demonstrating povidone-iodine's (PVI) effect on human osteoblast cells. Primary and immortal cell line osteoblasts were treated with 0.35% PVI for 3 minutes, and analyzed for proliferation rate, oxidative capacity, and mineralization.<br />Objective: To model spinal wound irrigation with dilute PVI in vitro, in order to investigate the effect of PVI on osteoblast proliferation, metabolism, and bone mineralization.<br />Summary of Background Data: Previously PVI irrigation has been proposed as a safe and effective practice to avoid bacterial growth after spinal surgery. However, recent evidence in multiple cell types suggests that PVI has a deleterious effect on cellular viability and cellular function.<br />Methods: Primary and immortal human osteoblast cells were exposed to either phosphate buffered saline control or with 0.35% PVI for 3 minutes. Cellular proliferation was measured over the duration of 7 days by MTS assay. Oxygen consumption rate, extracellular acidification rate, and proton production rate were analyzed using a Seahorse XF24 Bioanalyzer. Protein expression of the electron transport chain subunits CII-SDHB, CIII-UQRCR2, and CV-ATP5A was measured via Western blotting. Mineralized bone nodules were stained with alizarin red.<br />Results: Expressed as a percentage of normal osteoblast proliferation, osteoblasts exposed to 0.35% PVI exhibited a significant 24% decrease in proliferation after 24 hours. This was a sustained response, resulting in a 72% decline in cellular proliferation at 1 week. There was a significant reduction in oxygen consumption rate, extracellular acidification rate, and proton production rate (Pā<ā0.05), in osteoblasts that had been exposed to 0.35% PVI for 3 minutes, coupled with a marked reduction in the protein expression of CII-SDHB. Osteoblasts exposed to 0.35% PVI exhibited reduced bone nodule mineralization compared to control phosphate buffered saline exposed osteoblasts (Pā<ā0.01).<br />Conclusion: PVI has a rapid and detrimental effect on human osteoblast cellular proliferation, metabolic function, and bone nodule mineralization.<br />Level of Evidence: NA.
- Subjects :
- Anti-Infective Agents, Local pharmacology
Anti-Infective Agents, Local toxicity
Calcification, Physiologic physiology
Cell Line, Transformed
Cell Proliferation physiology
Humans
Osteoblasts physiology
Osteogenesis physiology
Povidone-Iodine toxicity
Calcification, Physiologic drug effects
Cell Proliferation drug effects
Osteoblasts drug effects
Osteogenesis drug effects
Povidone-Iodine pharmacology
Subjects
Details
- Language :
- English
- ISSN :
- 1528-1159
- Volume :
- 41
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Spine
- Publication Type :
- Academic Journal
- Accession number :
- 26641850
- Full Text :
- https://doi.org/10.1097/BRS.0000000000001332