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Anti-inflammatory e...
Anti-inflammatory effects of a titanium-peroxy gel: role of oxygen metabolites and apoptosis.
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- Larsson, Jenny, 1974- (author)
- Linköpings universitet,Patologi,Hälsouniversitetet
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Persson, Clas (author)
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- Tengvall, Pentti (author)
- Linköpings universitet,Gothenburg University,Göteborgs universitet,Institutionen för de kirurgiska disciplinerna, Avdelningen för biomaterialvetenskap,Institute of Surgical Sciences, Department of Biomaterials,Tillämpad Fysik,Tekniska högskolan
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- Lundqvist Gustafsson, Helen, 1966- (author)
- Linköpings universitet,Patologi,Hälsouniversitetet
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- Persson, Carina, 1970- (author)
- Linköpings universitet,Patologi,Hälsouniversitetet
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(creator_code:org_t)
- 2004
- 2004
- English.
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In: Journal of biomedical materials research. Part A. - : Wiley. - 1549-3296 .- 0021-9304 .- 1097-4636. ; 68:3, s. 448-57
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https://doi.org/10.1...
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Abstract
Subject headings
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- Polymorphonuclear neutrophils (PMN) are among the first inflammatory cells to arrive at an implant interface, where they encounter with the foreign material and may produce reactive oxygen species (ROS). During the interaction between titanium and ROS, titanium-peroxy (Ti-peroxy) compounds may be formed. We used a Ti-peroxy gel, made from titanium and hydrogen peroxide, to study the effects of Ti-peroxy compounds on PMN. In the absence of serum, the Ti-peroxy gel decreased the oxidative response of PMN to yeast and PMA and reduced PMN apoptosis without inducing necrosis. These effects could not be ascribed to the release of hydrogen peroxide from the Ti-peroxy gel, because a steady-state hydrogen peroxide producing system failed to mimic the effects of the gel. The effects were similarly unaffected when PMN were preincubated with beta(2)-integrin antibodies, questioning the involvement of adhesion molecules. Nevertheless, when a filter was used to separate the Ti-peroxy gel from the cells, the gel effect on PMN life span was abolished, pointing to a contact-dependent mechanism. In the presence of serum, the Ti-peroxy gel had no effect on the PMN oxidative response and life span, but appeared rather inert. In summary, this study demonstrates that the Ti-peroxy gel has potentially anti-inflammatory properties through a combined peroxide and physical contact effect, supporting the notion that interactions between titanium and inflammatory cells are responsible for the good performance of titanium in vivo.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmakologi och toxikologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmacology and Toxicology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Odontologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Dentistry (hsv//eng)
Keyword
- Anti-Inflammatory Agents
- chemical synthesis
- pharmacology
- Apoptosis
- drug effects
- Biocompatible Materials
- chemical synthesis
- pharmacology
- Cells
- Cultured
- Foreign-Body Reaction
- Humans
- Hydrogels
- chemical synthesis
- pharmacology
- Hydrogen Peroxide
- metabolism
- therapeutic use
- Materials Testing
- Neutrophils
- cytology
- drug effects
- Reactive Oxygen Species
- metabolism
- Respiratory Burst
- drug effects
- Titanium
- therapeutic use
- titanium
- MEDICINE
Publication and Content Type
- ref (subject category)
- art (subject category)
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