Layered double hydroxides as efficient drug delivery system of ciprofloxacin in the middle ear: an animal study in rabbits

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• 作者：Daniela Hesse (1)
  Muhammad Badar (2)
  André Bleich (3)
  Anna Smoczek (3)
  Silke Glage (3)
  Marc Kieke (4)
  Peter Behrens (4)
  Peter Paul Müller (2)
  Karl-Heinz Esser (5)
  Martin Stieve (1)
  Nils Kristian Prenzler (1)
  
• 刊名：Journal of Materials Science Materials in Medicine
• 出版年：2013
• 出版时间：January 2013
• 年：2013
• 卷：24
• 期：1
• 页码：129-136
• 全文大小：650KB
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• 作者单位：Daniela Hesse (1)
  Muhammad Badar (2)
  André Bleich (3)
  Anna Smoczek (3)
  Silke Glage (3)
  Marc Kieke (4)
  Peter Behrens (4)
  Peter Paul Müller (2)
  Karl-Heinz Esser (5)
  Martin Stieve (1)
  Nils Kristian Prenzler (1)
  
  1. ENT Department, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
  2. Helmholtz Centre for Infection Research, Inhoffenstr. 7, 38124, Braunschweig, Germany
  3. Institute of Laboratory Animal Science and Central Animal Facility, Medical University of Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
  4. Institute for Inorganic Chemistry, Leibnitz University of Hannover, Callinstr. 9, 30167, Hannover, Germany
  5. Institute of Zoology, University of Veterinary Medicine Hannover, Bünteweg 17, 30559, Hannover, Germany
  
• ISSN：1573-4838

文摘

Chronic otitis media is a common disease often accompanied by recurrent bacterial infections. These may lead to the destruction of the middle ear bones such that prostheses have to be implanted to restore sound transmission. Surface coatings with layered double hydroxides (LDHs) are evaluated here as a possibility for drug delivery systems with convenient advantages such as low cytotoxicity and easy synthesis. Male New Zealand White rabbits were implanted with Bioverit? II middle ear prostheses coated with the LDH Mg4Al2(OH)12(SO4)2·6H2O impregnated with ciprofloxacin. 12 (group 1) were directly infected with Pseudomonas aeruginosa and another 12 (group 2) 1?week after the implantation. Clinical outcome, blood counts, histological analyses and microbiological examination showed an excellent antimicrobial activity for group 1, whereas this effect was attenuated in animals where infection was performed 1?week after implantation. This is the first study to demonstrate an efficient drug delivery system with an LDH coating on prostheses in the middle ear.