A quadruped study on chitosan microspheres containing atorvastatin calcium: preparation, characterization, quantification and in-vivo application

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  • Eroglu Hakan
    Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University
  • Nemutlu Emirhan
    Department of Analytical Chemistry, Faculty of Pharmacy, Hacettepe University
  • Turkoglu Omer Faruk
    Department of Neurosurgery, Ankara Ataturk Research & Education Hospital
  • Nacar Osman
    Department of Neurosurgery, Ankara Numune Research & Education Hospital
  • Bodur Ebru
    Department of Biochemistry, Faculty of Medicine, Hacettepe University
  • Sargon Mustafa Fevzi
    Department of Anatomy, Faculty of Medicine, Hacettepe University
  • Beskonakli Etem
    Department of Neurosurgery, Ankara Ataturk Research & Education Hospital
  • Oner Levent
    Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University

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  • A Quadruped Study on Chitosan Microspheres Containing Atorvastatin Calcium: Preparation, Characterization, Quantification and <i>in-Vivo</i> Application

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Atorvastatin is commonly used as a cholesterol lowering agent in patients. Recently, the neuroprotective effects of atorvastatin became the focus of many research studies. In this study, we have formulated chitosan microspheres containing atorvastatin calcium. In-vitro characterization of chitosan microspheres and quantification of atorvastatin calcium from formulations were also evaluated. The neuroprotective efficiency of atorvastatin calcium was investigated by an experimental spinal cord injury model. Atorvastatin calcium microspheres were implanted at the laminectomy area (1 mg/kg) immediately after trauma. Twenty-four hours after injury, motor functions of animals were scored according to modified Tarlov Scale. In spinal cord tissues tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 and lipid peroxidation levels were quantified and ultrastructural changes have been investigated. The results of all parameters indicate that microspheres containing atorvastatin calcium were capable of improving functional outcome, attenuating the expression of TNF-α, IL-1β and IL-6; lowering lipid peroxidation levels and maintaining the preservation of the cellular uniformity.

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