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001-es BibID:BIBFORM041922
Első szerző:Pap Lajos (vegyész, analitikus)
Cím:Development of natural calcium- and phosphate-donating microparticles and a new iontophoretic apparatus for the topical treatment of local osteoporosis. Preliminary in vitro and in vivo studies / Pap Lajos, Gomez Izabella, Pap Lajos Jr., Szabó Andrea, Szekanecz Zoltán
Megjegyzések:We wished to develop a new iontophoretic device suitable for the treatment of local bone loss such as after fractures or in osteodystrophy. METHODS:The new iontophoretic apparatus consists of two parts. The first part consists of two natural-based, chemically modified particles as potential medicines, while the other part is a 3-electrode electrophoretic device based on a new principle. This device 'knocks out' Ca?(+) and PO? ?? ions from the particles with its impulse-like positive and negative charges transmitted through its electrodes placed on the skin. The current and the voltage of the electrodes can be adjusted separately in both leads. Subsequently, these 'knocked out' ions are channelled into the porotic bones with the help of the 3rd-reference-electrode.RESULTS:In our preliminary in vitro studies, we used porcine tissues to test their calcium and phosphate content after iontophoresis; with or without using molecules. This preliminary analysis revealed that both calcium and phosphate ions became incorporated into the bone. Some in vivo data are also presented. Iontophoretic treatment increased speed of sound (SOS) as determined by ultrasonography in ovariectomized rats.CONCLUSION:Our results suggest that topical iontophoresis may be suitable to treat local osteoporosis or bone defects.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Joint Bone Spine. - 77 : 5 (2010), p. 426-431. -
További szerzők:Gomez Izabella (1981-) (orvos) Pap Lajos (jr.) Szabó Andrea Szekanecz Zoltán (1964-) (reumatológus, belgyógyász, immunológus)
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